One minute review

The isinwheel U4 feels particularly well suited to city life, and living in London that comes through quite clearly. For quick commutes, runs to the shops or getting across town without dealing with public transport, it makes a lot of sense. The folding design is especially handy when space is tight, whether that means storing it in a flat, taking it into the office or keeping it tucked away at home.

It is not trying to be a premium e-bike, and that is perfectly fine. What it does offer is an affordable and practical way to get around. The motor has enough power for daily riding, and the battery is more than adequate for the sort of distances most city trips involve.

There are compromises, of course. It is heavier than you might expect for a folding bike, and rougher roads definitely remind you of the smaller wheels. But those trade-offs feel reasonable once you factor in the price.

What I like most is that it gets the basics right. It is easy to ride, simple to live with and genuinely useful for everyday use. For city-use in particular, where convenience and storage matter just as much as performance, the U4 fits in nicely.

View on isinwheel (currently £439, down from £629).

isinwheel U4 Ebike review: Design and build

Living in London, I am surrounded by bikes. There are rental bikes on what feels like every other street corner, but the costs add up surprisingly quickly, and in many cases it is actually cheaper to just take the bus or jump on the Tube. I already have a regular bicycle, but I have never owned an e-bike before, so coming into the isinwheel U4 I was curious to see whether having one of my own would make life easier.

Right out of the box, it is clear the U4 is beautiful in a minimalistic sort of way. It goes for a clean, understated look that really works, a simple design that suits its urban character perfectly.

Putting the bike together is pretty straightforward. That said, it still took me the best part of an hour. I started off following the instruction booklet, but there were a couple of points where I got a bit stuck, so I switched to a YouTube video, which made things much clearer. If I had to do it again, I could probably get it done in under half an hour. Live and learn.

Once I had everything put together and ready to ride, the first thing that stood out was just how solid the bike felt. There is some weight here, more than I expected, but on the plus side that weight gives the bike a reassuring sturdiness when you ride it. Once everything is locked in place, the structure feels stable with very little flex, and nothing feels poorly put together.

I would say the build quality is excellent, especially when you take the price into consideration. On isinwheel’s website it typically retails for around £600, but it often drops closer to £400, so it is definitely worth keeping an eye on sales.

In London, that price starts to look even more reasonable when you compare it to rental e-bikes. A typical hire ride can easily cost around £3 to £4 for a short journey, so if you use one regularly for commuting, the cost adds up surprisingly quickly. Over time, owning something like the U4 can work out far more economical. In fact, I was stopped at traffic lights by someone asking about the bike, and they genuinely did not believe me when I told them the price. Most e-bikes are far more expensive.

The components follow the same basic essentials theme. There is a front light powered by the e-bike battery and handlebar reflector, along with a rear light that runs on its own small third-party battery. You also get a bell to attach to the handlebar, while the display panel comes pre-installed. There is even an optional throttle that you can add to the handlebar in under a minute, just connect the cables and tighten the clamp.

Nothing feels overly premium, but nothing feels cheap either. The brakes, drivetrain and controls all feel in line with what you would expect at this level. Cable routing is exposed and a bit messy in places, which adds to the utilitarian look. It is not a dealbreaker, but it does remind you this is a budget build.

Worth noting is that both the handlebar height and seat height are adjustable, which helps the bike fit a wider range of riders than the specs might suggest. Officially, it is said to be designed for people up to 5ft 7in, but I am 5ft 9in and felt perfectly comfortable riding it. I have also watched a few YouTube reviews from people over 6 feet tall who seemed to get on with it just fine.

Overall, the design of the U4 leans heavily towards usability. It feels like a bike that is meant to be used daily without fuss. For the price, the balance between sturdiness and simplicity is about right, exactly what you want from an urban bike.

Folding and portability

Folding and portability is a big part of the appeal, and the U4 mostly gets it right. The folding process is simple and does not take long once you have done it a couple of times. There are no complicated steps or awkward sequences to figure out, which makes a difference if you are doing this regularly.

The bike folds down into a fairly compact shape and the process is very straightforward. You simply flip two latches. One folds the handlebars down roughly halfway, while the other lets the main frame fold in the middle.

Once folded, it ends up at about half its original size. It is not tiny, but it is compact enough to fit in a car boot, under a desk or in the corner of a flat without much hassle. That alone makes it far more practical than a full-size e-bike.

Where things get a bit more mixed is the weight. At around the mid 50 pounds mark, this is not something you will want to carry for long. Lifting it up stairs or onto public transport is doable, but it is not effortless. You feel the weight straight away.

Because of that, portability here is more about storage than carrying. It works well if you need to fold it and tuck it away, less so if you plan to carry it around often. But it is doable.

Overall, the folding aspect adds real convenience, as long as your expectations are in the right place. It is practical, not ultra portable.

Tech specs

isinwheel U4 Ebike review: Ride experience

On the road is where the isinwheel U4 really comes into its own. Once you start riding it, the whole simple and practical approach comes through quite clearly, and for urban trips it feels very easy to get along with.

The motor has enough power for everyday use. It is not punchy or aggressive, but it pulls you along smoothly and takes the effort out of getting up to speed. In stop-start traffic, that works particularly well. You are not fighting the bike, and it feels predictable rather than jumpy.

You can ride it without any motor assistance, or choose from one of the three assist levels. The first is barely noticeable and takes you up to around 10 km/h. The second is more useful when moving through busy streets, lifting you to around 15 km/h. The third is where the e-bike really shines, taking you up to 25 km/h, or 30 km/h if you tweak the settings. In the UK, the default is 25 km/h as that is the legal limit. This was the level I found myself using the most.

Hills are manageable, but you do notice the limits. On moderate inclines, the assist helps a lot and keeps things moving without too much strain. On steeper climbs, you will need to put in a bit more effort. It gets the job done, just do not expect it to breeze up everything.

Handling is quite nimble, especially at lower speeds. The smaller wheels make it easy to move around tight spaces, which is useful in city environments. At higher speeds, it feels a bit less planted than a full-size bike, but still stable enough for everyday riding.

Comfort depends a lot on the road surface. On smoother streets, it rides just fine and feels controlled. Once you hit rougher patches, you start to feel the bumps more than you would on a bigger bike. It is not harsh, but it is noticeable and reminds you of the smaller wheels and basic setup.

Braking is decent and does what you need it to do. It feels reliable in normal conditions, which is really what matters for a bike like this.

As mentioned, the bike also comes with an optional thumb throttle. It is genuinely useful in stop-start traffic, when pulling away from lights or if you just want a quick boost without pedalling. But UK riders should note that full throttle-only riding on public roads is only legal if the bike has the required manufacturer approval. Otherwise, it should be treated as a walk-assist feature only.

Battery and real world range

On paper, the isinwheel U4 is rated for up to around 88 km on a single charge. That number looks great, but it is very much a best case scenario based on ideal conditions and lighter use. How far the 36V 10.4Ah gets you depends heavily on how you use the bike.

In everyday riding, the range is more grounded. If you stick mostly to pedal assist on flatter routes, you can get somewhere in the region of 40 to 60 km without too much trouble. That feels realistic for commuting and general city use.

Push things a bit harder and the numbers drop. Using higher assist levels, tackling hills or relying more on the throttle will bring the range closer to 30 to 40 km. That is still usable, but it is worth keeping expectations in check.

The battery itself feels well matched to what this bike is designed for. It handles short trips, daily commutes and quick errands without any stress. You are not constantly thinking about charging, as long as you are not trying to stretch it too far. And hey, if you do run out of battery – you can always pedal your way back home.

Charging is straightforward and fits easily into a routine. It can take up to four few hours, but that is when the battery is entirely empty. Typically it will take you less, do just do a top up.

Display and controls

The bike comes with a preinstalled LCD screen. It shows the essentials, speed, battery level and assist mode, without trying to do anything more than that.

The display is clear enough for quick glances while riding. It is not particularly detailed, but it gives you the information you need without distraction. There is no menu diving to deal with. But if you click to +/- buttons at the same time, you can tweak some of the settings.

Controls are also straightforward. A basic button layout lets you switch assist levels and power the bike on or off. It is easy to get used to, and after a short time you are not really thinking about it.

You do not get any smart features here. There is no app, no ride tracking and no deeper data. Everything is kept at a very basic level. Which I like as I have too many apps on my smartphone as it is.

isinwheel U4 Ebike review: Who it is for

The isinwheel U4 is really aimed at people who just want an easy way into e-bikes without overthinking it. If this is your first e-bike, it makes a lot of sense. You get the basics, it is simple to use and you do not need to spend a lot to get started.

It works best for urban commutes. Maybe up to 10 or slightly more kilometres to work and back, quick trips to the shops or just getting around the city without relying on public transport. In that kind of use, it feels right at home.

It is also a good fit if you are tight on space. Flats, small homes or shared spaces all benefit from something that folds down and stays out of the way. You are not dealing with a full size bike taking over your hallway.

Casual riders will probably enjoy it too. If you are not chasing performance and just want something that makes riding easier, this ticks that box. The motor takes the edge off hills and longer rides, which makes it more approachable.

Where it starts to make less sense is if you already have experience with higher end bikes. If you care about lighter weight, smoother ride quality or longer range, you will notice the limits fairly quickly. So it really comes down to expectations. If you want something simple, practical and easy to live with, the U4 fits nicely into that role.

isinwheel U4 Ebike review: What could be better

The isinwheel U4 does a lot right for the price, but there are a few areas where the compromises are clear.

The first thing you notice is the weight. For a miniature folding bike, it is fairly heavy. You can carry it when needed, but it is not something you will want to lift regularly. That limits how “portable” it really feels in day to day use.

Ride comfort is another point to consider. The smaller wheels and basic setup mean you feel bumps more than you would on a larger or more refined bike. It is fine on smoother roads, but rougher surfaces highlight the limitations.

The components are also quite basic. Everything works, but it lacks that sharper, more precise feel you get from higher-end bikes. Braking, shifting and general responsiveness are all just average.

Range is decent, but the advertised figures are optimistic. In real use, especially with higher assist levels or hills, you will see it drop quite a bit. It is not a problem, but it is something to be aware of.

Put together, these are the trade-offs that come with the price. The U4 keeps things simple and affordable, but you do give up some refinement along the way.

View on isinwheel (currently £439, down from £629).

*We are a review site that receives a small commission from sales of certain items, but the price is the same for you. Purchasing items by clicking on links in this article allows us to run this website. We are independently owned and all opinions expressed here are our own. See our affiliate disclosure page for more details.

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One minute review

Luna Ring 2 is easy to get along with once you spend a bit of time with it. What stood out most is the solid sleep tracking, dependable battery life and a straightforward feature set that covers what most people actually need.

Compared to the original, it feels like a clear step forward. The whole package comes across as more complete, both in terms of the hardware and the app. Nothing feels experimental or half done. It all works together in a way that makes sense.

In terms of accuracy, things are mostly consistent. The main weak spot is exercise, where heart rate tracking struggles. That said, this is not unusual for smart rings. Most devices in this category run into similar issues once intensity goes up.

Where the ring really stands out is value. Retailing for around $300, you get a wide range of features without having to think about a subscription. And that shifts the overall appeal quite a bit.

If you go in with realistic expectations, Luna Ring 2 delivers a well rounded experience. I would put it right up there with RingConn, Ultrahuman and Hello Ring as a solid subscription free alternative to Oura.

Luna Ring 2 review: Design, hardware

Look & feel

I’ve tested quite a few smart rings over the years, and Luna Ring 2 comes in a form factor I’m very familiar with. It goes for a clean, understated look. More practical than luxurious.

There are no buttons or anything like that. Just a smooth surface. The titanium build gives it a solid, durable feel. Nothing out of the ordinary here, a simple design with a shape that feels natural after a day or two of wear. Which is exactly what you want from something you wear 24/7.

Getting the right size matters though. There is a sizing kit, and it is worth using it.

The edges are more rounded than on the first generation, although this could still go further. The thickness is also slightly noticeable compared to slimmer rings, especially if you are used to wearing traditional jewellery. But nothing that would be a deal-breaker.

In terms of design, I would say Luna Ring 2 is right up there with most smart ring alternatives. Probably better looking than Ultrahuman, but slightly behind RingConn.

As far as scratch resistance, I have been wearing it for the past few weeks including on bike rides and during weight lifting sessions. And it has held up well. There are no visible marks so far, which suggests the finish is pretty solid.

If you are coming from the Gen 1 device, there is not much to separate the two visually. The overall design stays very similar, with slight slimming and small refinements. It feels very light and comfortable on the finger, including during movement and sweating.

Under the Hood

Under the hood, Luna Ring 2 keeps things fairly straightforward. It uses an optical sensor setup to track heart rate throughout the day, along with support for blood oxygen during the night and skin temperature.

There is also an accelerometer for handling movement. That takes care of steps and general activity, but it is not a complex system designed for detailed workout analysis. It does a solid enough job, though, of capturing how active you are across the day.

These are the core signals you would expect from a smart ring, and that is exactly what you get here. It covers all the basics – nothing lacking, but also nothing extra.

Flip the ring over and you can see the sensor array on the inner side. It sits close to the skin and feels quite low profile, which helps with consistent readings without affecting comfort. Once it is on your finger, you do not really notice it, and that is kind of the point.

Decent battery life

Battery life is one of those things you don’t really think about after the first couple of days, which is a good sign. I was genuinely impressed with it. Mind you, some smart rings face battery depletion issues after a year or two of use – so it will be interesting to see how Luna Ring 2 holds up long term. I’ve only been using it for a few weeks.

You can expect the ring to last around five days before needing a proper top-up. If you are a bit lighter with it, you can stretch that closer to six.

What makes Luna Ring 2 feel easier to live with is the charging case. Instead of waiting for the battery to run down completely, you can just drop the ring in for short top-ups here and there. That changes the whole experience a bit. You are not dealing with a dead device, just keeping it topped up as part of your routine.

Also, I like the fact that the charging case is small. Smaller than some other options on the market. And nice looking.

Charging itself is quick enough that even a short break is useful. Take it off while showering or sitting at your desk and you can claw back a decent chunk of battery without thinking about it too much.

Luna Ring 2 review: Features

Now what about the health tracking features? This is where a smart ring either works or falls apart.

The good news is Gen 2 has moved things forward. The original sometimes struggled with sleep tracking, but that feels improved here. The app has also come a long way over the past year. It feels more polished and easier to navigate.

You get all the usual metrics running in the background, heart rate, blood oxygen, skin temperature and stress. The app pulls all of that into a vitals dashboard, along with three main scores, sleep, readiness and activity. Those are the ones you actually check. They give you a quick sense of where you stand without digging through charts.

The app keeps things simple. It is not cluttered, but everything you need is there. You also get extras like your circadian rhythm mapped through the day, plus useful touches like a suggested caffeine window.

What stands out is the restraint. They are not trying to overwhelm you with endless metrics or features you will never use. Compared to Ultrahuman, you get fewer features. Compared to RingConn, the level of detail is not quite as deep. But for most people, this will land in the right place. You get what matters, without the noise.

The stats feel generally reliable. I compared them against my Garmin watch and a couple of other smart rings, and most of the data lines up pretty well. Overnight blood oxygen is the one area that felt a bit off. On a couple of nights, the ring flagged readings as below optimal, which did not quite match what I expected.

Sleep is where the ring feels most complete. You get a sleep planner based on your vitals, and in the morning the app breaks everything down into light, deep and REM sleep. It also shows total duration, sleep consistency and breathing patterns. On top of that, there is a sleep score with a simple breakdown of what went well and what did not. After a few days, it becomes easy to spot patterns.

It is also good at picking up naps and shorter sleep sessions, which is not always a given with these devices. And there’s a smart alarm, which is a nice touch. Taken together, the sleep tracking and tools feel genuinely useful.

Readiness pulls together things like resting heart rate, heart rate variability, temperature trends and sleep quality. It is basically a quick check of how recovered you are before the day starts. It does not go very deep, but it gives you enough to know if you are on track or should take it a bit easier.

Stress tracking runs in the background and builds a score based on how your heart rate behaves during the day. You also get guided breathing sessions in the app if you want them. It is simple, but easy to access and does the job.

Then there is the AI side of things. Luna’s assistant feels fairly well put together. You get daily suggestions, the option to dig deeper into your health data and even some basic workout guidance. It is not perfect, but it feels more useful than what a lot of other smart ring apps offer right now.

Activity and exercise tracking

Activity tracking is more on the basic side. Which shouldn’t surprise as smart rings typically focus on recovery metrics. Luna Ring 2 is no different.

You get steps, calories and general movement, plus the option to log workouts. That said, it is not trying to replace a sports watch. There is no real depth to workout analysis. It is more about keeping a record than breaking things down in detail.

You are meant to start exercise tracking from the app. This has the benefit of being able to link the data to your smartphone’s GPS signal, and that part works well. Where it falls apart is with heart rate tracking accuracy, which means the data ends up being of limited use.

That is not unique to this ring. Most smart rings struggle here. The issue comes down to how and where they sit on the body. Your finger has less stable contact during movement, more variation in blood flow and more external interference from grip and hand motion. That makes it harder for optical sensors to lock onto a clean signal, especially during higher intensity workouts.

Alternatives to consider

We are not big on monthly subscriptions. That said, if you are fine with paying one, the Oura ring still sits near the top of the category and has one of the most complete app experiences out there.

The good thing is you now have a few solid options that do not lock features behind a subscription. Luna Ring 2 is one option. RingConn is also right up there. It tends to be one of the more accurate smart rings, battery life is strong and the app goes deeper into your data than most.

Ultrahuman is also worth a look. The Ring Air is not the most eye catching in terms of design, but the app is one of the strongest around. It offers a wide range of features and add-ons, so there is quite a bit to explore if you want more insight.

Then there is the Amazfit Helio Ring. In our Amazfit Helio Ringtesting, it is one of the few that can keep heart rate reasonably accurate during exercise. It also runs on the Zepp Health app, which means it fits neatly if you already use other Amazfit devices.

There is now a genuine choice depending on what you value most, whether that is accuracy, depth of data or just keeping things simple without a subscription.

*We are a review site that receives a small commission from sales of certain items, but the price is the same for you. Purchasing items by clicking on links in this article allows us to run this website. We are independently owned and all opinions expressed here are our own. See our affiliate disclosure page for more details.

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The post Luna Ring 2 review: a practical alternative to pricier rings appeared first on Gadgets & Wearables.

Ozlo Sleepbuds are tiny wireless earbuds. They focus on comfort, sound masking and a private in ear alarm, while still letting you stream whatever you want, podcasts, audiobooks or white noise.

The idea is pretty straightforward. Block out noise and give you something calming to listen to so you fall asleep quicker and stay asleep longer, even if you are lying on your side. But how well does that actually work?

After a couple of weeks of testing, there are a couple of things that stood out.

Ozlo Sleepbuds: One minute review

Ozlo Sleepbuds are a pretty niche product. You can use them during the day if you want, but they are really built for sleep, not to replace your regular earbuds.

The device relies on passive noise blocking combined with sound masking, so there is no active noise cancellation here. The whole idea is to help you deal with noise at night, something I’ve been dealing with myself lately thanks to noisy neighbours. I’m sure plenty of people can relate.

The buds are tiny and sit almost flush in your ear, so you can wear them all night without really noticing them. Honestly, they are the most comfortable audio enabled headphones I have used for sleep. Add in the sound masking and the option to stream your own content, and you end up with something that does a solid job of blocking out distractions and keeping things under control.

At the same time, this is not a typical earbud experience. The whole system revolves around the Smart Case and it feels a bit different from what you might be used to.

If noise is constantly waking you up at night, these can genuinely help. They are not going to fix everything, but they can make your nights feel a lot quieter. The price is on the high side, but if regular earbuds have not been doing the job for sleep, these are definitely worth considering. They won’t work for everyone, but as a side sleeper with noisy neighbours – this is pretty much the exact product I was looking for.

View on Ozlo / Amazon.

Design and comfort

Ozlo Sleepbuds are about as small as wireless earbuds get. Each bud is tiny and rounded, designed to sit almost flush inside the ear rather than sticking out. That low profile matters because these are perfectly fine to be worn while lying on your side, with your ear pressed into a pillow. In practice, they feel more like soft earplugs than traditional earbuds.

The buds use silicone tips with small winged fins that help keep them anchored in place overnight. Once inserted and twisted slightly into position, they sit securely without needing much pressure.

I must say, I have experimented a lot with different ear products in recent years. And these are the first earbuds that feel totally comfortable at night. The material is soft and flexible, which helps avoid the hard pressure points you get with standard earbuds. And they stay in place.

Ozlo includes a few different ear tip sizes in the box, so it’s good to experiment. Getting the right fit makes a difference for both comfort and how well the buds isolate noise. Once you dial that in, they pretty much disappear after a few minutes, which is exactly what you want from something you are wearing all night.

In terms of looks, they do not really appear on the outside like a fancy product. It’s more function over form. There are no buttons or touch controls on the buds, which keeps the surface smooth and unobtrusive. The trade off is that you end up relying on the app for pretty much everything, but I’ll get into that in a bit.

Audio and sleep sounds

Make no mistake, Ozlo Sleepbuds are not trying to compete with normal earbuds when it comes to sound quality. The whole point is to create a calm sound environment.

To achieve this, they use passive noise blocking from the silicone tips along with sound masking. So you get a customisable steady background sound that blends in with things like snoring, traffic or whatever else is going on around you.

Also worth knowing, there is no active noise cancellation here. That might sound like a miss, but it actually makes sense. ANC drains more battery. Ozlo keeps it simple instead, relying on a good seal and consistent background audio to make outside noise less noticeable.

You can use the audio in two main ways. The first is through the built in sleep sounds available in the Ozlo app. These include different variations of white noise and nature style soundscapes designed to create a consistent background tone through the night.

Ozlo Sleepbuds*

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The second option is streaming your own audio. Unlike older sleep earbuds that locked you into a small library of sounds, Ozlo lets you play anything from your phone. Podcasts, audiobooks, music, meditation apps, it all works.

Pairing them for streaming is a bit different from normal earbuds. You cannot just connect them directly through your phone’s Bluetooth settings. That is because the buds do not connect to your phone in the usual way. Instead, they connect to the Smart Case, and the case connects to your phone. The case acts as the middle layer, handling the connection and managing how audio is delivered to the buds.

I’ve actually got into the habit of putting on a YouTube video in the evening. Once it ends, by which time I am fast asleep, the buds switch over to a steady masking sound that runs through the rest of the night. That helps keep outside noise from waking me up in the morning. As mentioned, I’ve got upstairs neighbours with young kids, and things get pretty hectic around 6 or 7am. These have made a real difference.

The audio itself is clearly tuned more for spoken content and ambient sounds than for music. And that is fine. For sleep, that is exactly what you want.

Worth noting is that my setup uses an iPhone with the buds. I have noticed online some users reporting connectivity issues. I have not experienced these. The streaming works fine, the buds connect to the app with no issues. One thing you do need to make sure is that you fit them in the case correctly. If they are even a little bit off, they will not charge or connect to the app. So that’s something to be aware of.

App and features

As mentioned, you control pretty much everything through the app rather than tapping the earbuds. That won’t be to everyone’s liking, but it makes sense given the design. Keeping the buds free of buttons helps with comfort, especially when you are lying on your side.

Having said that, you can use the buds during the day without the app. Just take them out of the case and they will automatically play the masking sound you have last saved.

On that note, a big part of the app are the built in sleep sounds. You can scroll through different background audio designed for overnight listening and send it straight to the buds. You also get controls like volume and sleep timers, so you can have the audio stop after a while if you don’t want it running all night.

The app is also where you set up the private in ear alarm. Instead of blasting a phone alarm, the sound plays directly through the buds. It is a nice touch if you don’t want to wake anyone else up.

There is also some smarter stuff going on in the background. The buds can detect when you have fallen asleep and automatically switch from whatever you were listening to a masking sound or no sound.

And you can track your sleep session stats in detail. This feature is marked as beta, but it worked well in my testing. The stats you get are actually pretty detailed, and the Smart Case adds another layer by tracking things like noise, light and temperature around your bed. It’s not something I see myself using every night – but it does make interesting reading.

Battery life

For me, battery life is one of the highlights of the product. Ozlo Sleepbuds are built to easily last through a full night. The advertised specs for the earbuds are around 10 hours of playback on a single charge, but that depends on how you use them. With my setup, an hour or two of YouTube followed by masking noise through the night, they are typically down to around 45% by morning.

Because the buds don’t connect directly to your phone, they offload some of the connection work to the Smart Case. The case handles the main Bluetooth link, while the buds use a lower power connection between themselves and the case. This setup is designed to be more power efficient

This means that whatever your bedtime routine, these Ozlo should be able to keep running until morning. Battery life is not something you need to worry about.

The buds recharge inside the Smart Case, which also stores additional power. The case provides roughly another 30 hours or so of extra listening time. You place the buds back in the case during the day, they recharge automatically and they are ready again for the next night.

Real-world sleep experience

As you can probably tell from this review, one of the biggest highlights for me, aside from battery life, is just how comfortable these are in bed. You barely notice them, which is exactly what you want from something sitting in your ears for seven or eight hours. As a side sleeper, I usually find earbuds either fall out or become uncomfortable after a while, and that ends up messing with my sleep.

The sound masking also works pretty well. It is not perfect, but the silicone tips already block some external noise, and the background audio helps smooth out sudden disturbances. Instead of sharp changes in noise, everything feels more consistent. That makes it less likely you will be woken up by things like upstairs neighbours, traffic or someone moving around next to you. In that sense, it works better at night than during the day.

For me, Ozlo buds fit really nicely into my bedtime routine. I usually start with a podcast or a YouTube video, which helps me drift off, and then the background sound takes over and keeps things steady through the night.

As for the app, it is well put together, but I would still prefer a way to pair the buds directly to the phone without it. So it is not perfect. Still, it is a trade off I am happy to make for a better night’s sleep.

Ozlo Sleepbuds: Technical specs

View on Ozlo / Amazon.

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The post Ozlo Sleepbuds review: Can these tiny earbuds fix noisy nights? appeared first on Gadgets & Wearables.

Sleep is still a battle in my household. While the neighbour’s midnight routine hasn’t changed, my gear has. After relying on QuietOn 3.1 for the past couple of years, I was curious to see if the new model could do better.

QuietOn 4 brings a fresh design, some subtle improvements in comfort, along with tweaks to its ANC performance. It still doesn’t play music or pair with an app. That’s intentional. This is a sleep tool, not an entertainment gadget.

So how does it compare to the previous version? And more importantly, does it actually help you sleep?

QuietOn 4 review: One minute review

QuietOn 4 is built for one job and mostly delivers. It lowers the kind of background noise that keeps you up at night. Snoring, traffic, humming appliances, all get pushed into the background once the ANC settles in.

The updated shape fits better, the foam tips are easier to work with, and the added wax guard helps keep things cleaner for longer. These are small upgrades but they add up.

At close to 300 dollars, it is not cheap. But if you have already gone through the usual foam plugs and nothing has worked, this might be the step up you need. You will still hear voices and alarms, but the constant low sounds that wear you down will be much less noticeable. For the right person, that can be the difference between a full night of sleep and staring at the ceiling.

View on QuietOn.

How QuietOn 4 deals with noise in practice

While QuietOn 4 might look like a pair of wireless earbuds, they don’t play music, stream audio or generate white noise. You won’t find Bluetooth and there’s no app to connect. This isn’t a device for relaxing soundscapes or podcast sessions before bed.

Instead, it’s fully focused on cutting noise. Whether it’s snoring, street traffic, a humming fridge or loud plumbing, the goal is to reduce background sound so your brain can switch off.

The active noise cancelling tech relies on a small microphone inside each earbud. It picks up ambient sounds and the speaker creates an opposite signal to cancel it out. According to QuietOn, the ANC works most effectively below 3 kHz. That range covers the type of noise that tends to disrupt sleep the most, and performance in that band is stronger than what you’d get with foam plugs alone.

In real life, QuietOn 4 is good at handling low rumbles. Snoring, street hum, fridge buzz, and engines are where it shines. But it won’t kill everything. Sudden clanks, high-pitched voices, or someone speaking next to you will still come through. It doesn’t mask sound, it subtracts certain frequencies. That’s the trade-off.

Two separate modes

QuietOn 4 still uses the same straightforward mode system as its predecessor. As soon as you take the earbuds out of the case, they default to noise cancelling. It takes around 20 seconds for the ANC to fully kick in. That slow fade is part of how the system works.

Make sure to put the right earbud in your right ear and the left on in the left ear. They are labeled.

You’ll notice it as a kind of soft drop in the ambient sound around you. Like turning the volume down on the world. Low-frequency noise starts to melt away. Think fridge hum, distant traffic, ventilation systems, or someone snoring in the next room.

It’s not total silence, but it is a noticeable shift. You start to realise how much background sound you’ve been tolerating.

Switching to hearing mode is simple. Bring the charging case close to each earbud and it will toggle over. You’ll need to do this one ear at a time. This mode lets in more of your surroundings, which can be useful if someone needs your attention or you want to stay aware of what’s going on. In practice, the switch doesn’t always trigger on the first try, so you might need to repeat the gesture.

As mentioned, even in full ANC mode, not everything gets blocked. QuietOn 4 is tuned to reduce lower frequencies, not voices or alarms. So if someone talks to you, you’ll still hear them. And your morning alarm should still be audible, especially if it’s set loud enough.

Fit and comfort over a full night

QuietOn 4 sticks with the same tiny form as before, just a bit more refined. The new shape follows the ear canal more naturally, which helps with both comfort and fit. It takes less fiddling to get them in properly, and once they’re in, they stay put. Side sleepers will probably notice this the most.

They still look like minimal earbuds. No Bluetooth, no sound or app. You just put them in and they block noise. They don’t look like hearing aids and once they’re in, they’re barely noticeable.

The foam tips have been updated too. They’re softer and easier to compress. You still need to pinch the foam, push them in with a twist, and let them expand. That expansion gives you the proper seal. If you skip that, the noise cancelling won’t do much.

Comfort is still the highlight. You can lie on your side and not feel any pressure. They don’t dig into the ear and they don’t fall out during the night. That’s more than you can say for most earbuds.

In addition to when you are asleep, the buds are useful on planes. You can wear them during long-haul flights and block out cabin noise without having to keep something heavy on your head.

Same with noisy buses or waiting areas. You’re not going to fall asleep instantly, but the general stress level drops. It’s a different use case, but it fits the same idea of lowering background noise rather than masking it.

Wax guard and long-term use

There’s also a built-in wax guard now. It’s not something you notice when wearing them, but it helps keep the internal components cleaner and protects the tips from clogging. That small addition could make them last longer with regular use.

As before, you get a few different tip sizes in the box. Swapping them is quick, and finding the right size is worth the effort. A good seal makes a big difference. And with the new wax guard in place, the tips should hold up better over time even with nightly use.

After a few weeks of daily use, you’ll probably notice the foams getting more compressed or picking up a bit of wax buildup. The wax guard helps protect the insides of the buds, which is a step up from earlier models, but you might want to replace the tips every couple of months depending on use. They’re easy to swap, but not exactly cheap.

Charging and nightly routine

Like before, you get a small charging case with the earbuds. Drop them in when you’re not using them. It keeps them powered up, stops you from losing them, and keeps the foam tips from picking up dust or fluff from your pillow.

The case gives you about 28 hours of total use per charge. That’s enough to top up the earbuds around three times before you need to plug the case in again. The earbuds themselves last the night without issue, so you’re covered for regular sleep cycles and even a bit of downtime before bed.

The buds tend to hold charge well even if you leave them unused for a few days. You’ll want to check them now and then to avoid getting caught out right before bed.

On the front of the case, there are six small lights to show how much charge each earbud has. On the back, there are three more lights for the case itself. You’ll know where everything stands at a glance.

Charging is simple. The case takes around 3 hours to go from empty to full. The earbuds need about 2 hours to fully recharge once drained. Stick to a nightly routine and you probably won’t think about battery life much at all.

Are they safe to wear all night?

Wearing something in your ears all night raises fair questions. Safety should be part of the equation.

One concern that comes up is electromagnetic field exposure. That’s not a problem here. QuietOn 4 doesn’t have Bluetooth, Wi-Fi, or any kind of wireless connection. There are no transmitters or receivers, so you’re not dealing with any EMF radiation.

Internally, the microphones have been improved. They’re better at picking up low-frequency noise, which helps the ANC work more precisely. That improvement plays out most clearly with snoring and environmental hum rather than sharp sounds.

QuietOn 4 vs 3.1: Technical specs comparison

View on QuietOn.

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The post QuietOn 4 sleep earbuds review: simple quiet in a noisy world appeared first on Gadgets & Wearables.

The Amazfit Active Max arrived earlier this month, just ahead of CES 2026. With its bold design and large display, it’s clearly positioned to catch the eye. This is Zepp Health pushing further into the large-screen territory, without pushing the price up to match.

I’ve been wearing the timepiece since launch and putting it through its paces in daily use. From training sessions to sleep tracking and everyday tasks, it’s been a chance to see how the experience holds up over time. Here’s what I made of it.

Amazfit Active Max: One minute review

The Amazfit Active Max does exactly what it sets out to do. It’s bright, comfortable and well-built, with reliable tracking and battery life that goes the distance without needing constant attention. Health features cover all the basics, and the Zepp Health app continues to get better with each update.

Sports tracking performs surprisingly well, even when lined up against more expensive watches. You don’t get all the deeper training analysis that brands like Garmin are known for, but you still get plenty. Plus the data you get is consistent and easy to work with day to day.

For me, this is the most attractive watch Zepp Health has dished out so far. And I’ve reviewed a lot of their devices over the years. The design feels more polished, the screen is a pleasure to look at, and the whole thing just works without being overcomplicated. If you want something that nails the basics, looks good doing it and doesn’t cost a fortune, the Active Max is one of their strongest efforts yet.

Amazfit Active Max can be purchased from Zepp Health or Amazon*

Jump to

Design, hardware
Health & fitness tracking
Sports tracking
Smartwatch features

Design, hardware

Look & feel

I wasn’t expecting the Amazfit Active Max to look this sharp on the wrist. It’s got that big, bold 1.5-inch AMOLED display that dominates the front, and it really works. Everything feels bigger, brighter and better looking than you’d expect at this price. Text is sharp, colours pop, and it’s easy to read in full sun thanks to that 3,000-nit brightness.

Despite the size, the thing doesn’t feel heavy or bulky. I have rather slender wrists and it didn’t look out of place.

The case measures just over 48mm across, but Zepp Health has kept the weight down by using aluminium around the frame and polymer elsewhere. Without the strap it’s under 40 grams, and that helps it sit comfortably on the wrist. I’ve worn it for full days, including sleep tracking, and barely noticed it was there. The strap is silicone and soft enough to wear all day, with a standard pin buckle that stays put. It’s also a regular 22mm width, so easy to swap if you want a different look.

There are two side buttons that come in handy when you’re in the middle of a workout or just don’t feel like swiping. They’ve got a solid click to them and feel well made. My one complaint is that they perhaps sit a bit too flush against the case – so you need to push firmly for a press to register.

The overall build is sturdy. It’s not pretending to be a rugged adventure watch, but it feels like it can handle daily knocks and splashes. With 5 ATM water resistance, you don’t need to worry about wearing it in the rain or rinsing it off after a workout.

In black, which is the only option it comes in, the device looks clean, minimal, with a bit of a sporty edge. It’s the kind of design that works for both workouts and everyday wear. You could easily dress it up or down, and make it look very pretty with some really nice watch faces.

For a timepiece this big, it’s surprisingly easy to live with. Some oversized watches feel awkward or top-heavy, but this one sits flat and stays put. It’s clearly been designed with wearability in mind. From the first day I put it on, it just felt right.

Under the hood

The Active Max might look clean and simple on the outside, but it’s packing a decent set of components inside. At the core is Amazfit’s latest BioTracker sensor. It combines five photodiodes and two LEDs to track heart rate, blood oxygen, along with stress levels.

The sensor package covers all the basics. You also get an accelerometer, gyroscope, ambient light sensor, barometric altimeter, temperature sensor and a geomagnetic sensor. The altimeter and compass make it a good fit for hiking or trail running, and the temperature sensor logs ambient data throughout the day. It’s not skin temp like in some newer wearables, but it’s still useful for context during outdoor activities.

On the positioning side, the watch connects to five satellite systems. It doesn’t use dual-band GNSS, so it sticks to single-frequency tracking, but it still locks on quickly and held signal well in most conditions. In open areas it stayed accurate, and only dense tree cover or tall buildings caused minor drift. For a watch at this price, that’s about what you’d expect.

There’s also a speaker and mic onboard, both neatly integrated. You can use them for Bluetooth calls or music playback, and while the speaker won’t blow you away, it’s loud enough. Inside, there’s a rotor motor for vibration alerts. It’s quiet, but the feedback is clean and not too sharp. The whole thing feels well balanced for the kind of user this watch is aimed at. It’s not trying to pack in every possible sensor, but it does enough to hold its own for daily health tracking and weekend activities.

Battery life

Battery life is one of the bigger strengths of the Active Max. Amazfit says you can get up to 25 days on a single charge, and while that’s with lighter use, the real-world numbers are still impressive. I had most of the bells and whistles switched on, and it lasted well over a week without needing to charge. No special settings or tricks. Just put it on and use it.

Amazfit Active Max*

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If you like having the always-on display turned on, you’re looking at about 10 days. That’s still way ahead of most smartwatches out there. One thing you may notice, the display dims a bit if the battery is close to empty.

GPS tracking can stretch to 64 hours, which makes this watch a solid pick for anyone doing longer outdoor sessions or multi-day events. Even when I added music playback while using GPS, it still pushed through about 22 hours without cutting out.

Charging takes a bit over two hours, so it’s not blazing fast. But with the kind of endurance you get, that charge time doesn’t really matter. I never found myself stressing about battery percentage or planning around it.

Tech specs

Health & fitness tracking

The Active Max keeps tabs on heart rate, blood oxygen, stress and more. And all of it just runs in the background once you’re wearing it. There’s also a handy one-tap check that pulls in all the main stats at once. You don’t need to scroll through menus or launch separate apps to see how your body’s doing.

BioCharge is Amazfit’s take on a readiness score. It’s been around for a few months and is one of the more useful features on this watch. It pulls in sleep quality, stress, and other recovery metrics to give you a simple number each day. It’s not as detailed as what you’ll get from Garmin or Whoop, but it’s a decent overview of how recovered you are and whether you’re ready to train. PAI is also here if you prefer a more effort-based goal, built around your heart rate zones instead of daily steps.

Heart rate tracking holds up well for day-to-day use. It stays consistent throughout the day and during regular activity. SpO₂ and stress tracking have also been reliable.

Sleep tracking has also been accurate for the most part. It breaks things down into REM, light, deep and awake, and also keeps track of overnight heart rate and breathing. It even logs naps, which a lot of watches still miss.

The Zepp app gives you a sleep score and a few insights each morning. The data won’t blow your mind, but it’s enough to spot patterns and understand your recovery. Plus you get some more novel information such as hypopnea – which makes an interesting read.

A recent revamp to the Zepp app brought in a new badges system, and it’s actually a fun little addition. You now get a dedicated spot in the app where all your achievements live, like personal bests, streaks and completed challenges. It’s not something you see on the watch itself, but in the app it gives your stats a bit more life. The update also freshened up the overall look with softer colours and cleaner cards.

Sports tracking

There are over 170 workout modes on the Active Max, which sounds like overkill, but you can hide the ones you don’t use and keep the list manageable. The usual stuff like running, walking, cycling and strength is all there, and you can also import routes and use offline maps, which is great if you’re heading out without your phone.

I tested it on several runs against a Garmin Forerunner 955. On a 7.5 km city run, the Garmin logged 7.58 km, and the Amazfit came in at 7.48 km, which sits well within normal GPS variation for stop‑start urban routes. Average heart rate was 140 bpm on the Active Max and 139 bpm on the Garmin, with peak readings of 160 bpm and 166 bpm. But for most of my other runs, the data was even closer together – so this was actually a bit of an outlier.

The core heart rate pattern was similar on both devices throughout my runs, including sections with changes in pace and rhythm. The Amazfit tends to stick slightly higher on cadence, with 180 steps per minute for this 7.5K compared to 176 on the Garmin. Stride length was effectively the same, sitting at 97 cm versus about 1 metre.

Where the numbers split a bit is in running dynamics. The Active Max reported a bit more vertical movement, and ground contact time was shorter compared to the Garmin.

Training load and effort feedback on the Active Max felt off, because the watch had estimated my maximum heart rate at 164 bpm using a simple age-based calculation. Garmin had mine at 174 bpm based on years of data. That affects how zones are calculated and how hard a run feels in the summaries.

This is actually a limitation introduced with the latest version of the Zepp Health app – you can’t manually edit the max HR like you could previously. No doubt, in the coming days it will be resolved.

After workouts you still get pace, heart rate zones, calories, recovery time and a VO₂ max estimate right on the watch, with a session summary in the Zepp app. VO₂ max was about 42 ml/kg/min on the Amazfit, a few points below Garmin, but again that’s tied to how each ecosystem builds your baseline. Indoors, strength workouts and treadmill runs tracked fine too.  Overall it’s solid enough for everyday running and general training without making you constantly question the numbers.

Smartwatch features

Finally, let’s talk about the general smartwatch features. The Active Max covers plenty, without getting bogged down in extras you won’t use.

Notifications from your phone come through without delay, and on Android you can even send quick replies straight from the watch. It handles calls too. You can answer, reject or take the call on your wrist using the built-in mic and speaker.

Music controls and offline music storage are there, and iPhone users get remote camera control which is a nice bonus. You can also ping your phone if it’s gone missing in the couch cushions again.

Beyond that the watch supports calendar reminders, to-do lists, alarms, world clock, Pomodoro timers, weather, along with even a morning summary with the day’s basics. There’s also a basic voice memo feature if you want to quickly record something on the go. It locks when you need it to, has Do Not Disturb when you don’t want to be bugged, and keeps track of sedentary time with gentle nudges to move around. Plus you can install lots of other apps via the Zepp Health App Store.

Amazfit Active Max*

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If you’re in a supported country, you also get Zepp Flow, which brings voice control into the mix. You can talk to the watch to set reminders or launch apps, or just ask general questions. It almost functions like a full-blown assistant. Plus it’s more useful than most of the voice control efforts I’ve seen on other budget watches.

There’s even some nice quality-of-life stuff built in. You can add digital membership cards to the watch, customise shortcut cards for quick access to your favourite features, and check the temperature straight from the wrist. It doesn’t overcomplicate things, but there’s just enough here to feel like a proper smartwatch, not just a fitness tracker with notifications.

Amazfit Active Max can be purchased from Zepp Health or Amazon*

*We are a review site that receives a small commission from sales of certain items, but the price is the same for you. Purchasing items by clicking on links in this article allows us to run this website. We are independently owned and all opinions expressed here are our own. See our affiliate disclosure page for more details.

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The post Amazfit Active Max review: The budget sports watch that looks anything but appeared first on Gadgets & Wearables.

I reviewed both the 47mm and 43mm versions of the OnePlus Watch 3 last year. They felt solid, had bright AMOLED displays and packed in plenty of features. The main difference was the size, but the overall experience was pretty much the same. Now comes the OnePlus Watch Lite. It looks like part of the same family, but once you dig in, it’s clear this one’s built with a different idea in mind.

There’s no Wear OS here, just a lightweight custom system. Some features have been dropped, but the upside is better battery life, a slimmer build, a simpler day-to-day feel, along with a more budget-friendly price-tag. After testing the more powerful models, I wanted to see if this stripped-back version still delivers where it counts.

OnePlus Watch Lite: One minute review

The Watch Lite isn’t trying to be a cheaper Watch 3. It’s doing its own thing. The hardware feels solid, the display is excellent, and battery life is solid. You’re not getting Wear OS, you’re not getting a speaker, and you can’t install apps – but none of that feels like a dealbreaker if you know what you’re signing up for.

It handles the essentials well. Health tracking is consistent, GPS and heart rate during workouts hold up, and the interface is quick and clean. Coming from the Watch 3 and 43mm, I didn’t feel like I was missing much in everyday use. Sure, there are trade-offs, but they’re the kind that make the watch easier to live with, not harder. If you just want something that tracks your day, logs your workouts and doesn’t try to do too much, the Watch Lite nails it.

OnePlus Watch Lite can be purchased from OnePlus*

Jump to

Design, hardware
Health & fitness tracking
Sports tracking
Smartwatch features

OnePlus Watch Lite review: Design, hardware

Look & feel

The OnePlus Watch Lite keeps the familiar round shape seen across the Watch 3 range, but trims things down with a thinner and lighter build. At 35 grams and just 8.9mm thick, it feels noticeably less bulky on the wrist, especially when compared to the 47mm Watch 3, which tips the scales at 50 grams and has a chunkier presence. Even the 43mm version, which already cuts the size down, still carries more weight and thickness than the Lite.

This device is very unisex. I felt the 43mm wasn’t really right for me, but with a diameter of 45mm I think Watch Lite is better suited for men.

The drop in thickness and weight makes a real difference in everyday wear. The device sits flatter on the wrist, slips under a sleeve without catching, and just disappears more easily during the day. The fluoroelastomer strap feels soft and doesn’t cause any irritation, even after long hours. The whole thing wears more like a fitness band than a full-on smartwatch, but without looking cheap or plasticky. Quite the contrary.

Design-wise, OnePlus has done a decent job keeping things premium. The case is still stainless steel and the strap is the same quality as the Watch 3 models. You lose the sapphire glass and titanium bezel from the flagship version, but the 2.5D curved glass looks clean. The one rotating crown is easy to use, though I did miss the second button now and then for quick actions.

The 1.46 AMOLED display is one of the Lite’s highlights. It’s bright, sharp and responsive. The thing peaks at 3000 nits, which makes it more readable outdoors than both Watch 3 models. And because it sits flush with the body rather than framed or recessed, this gives it a sleeker look.

If you’re coming from the 47mm Watch 3, this feels like a different experience altogether. There’s less wrist presence, fewer high-end materials, but a lot more comfort. Compared to the 43mm, it’s closer in size but still feels more minimal in both look and build.

Under the hood

The OnePlus Watch Lite runs on the MES2800BP chip, paired with embedded eMMC storage. This setup is designed to run OnePlus’ lightweight OxygenOS Watch 7.1 platform smoothly, without the overhead of Wear OS. In return, you get snappy performance for basic tasks like notifications, health tracking and watch face switching.

By contrast, both the 47mm and 43mm Watch 3 models come equipped with the Snapdragon W5 paired with the BES2800BP coprocessor. That combination supports full Wear OS 5.0, allowing access to the Play Store, app syncing, third-party watch faces, and more advanced features like Google Maps navigation or offline Spotify.

Connectivity reflects this split too. The Watch Lite offers Bluetooth 5.2 for phone pairing, but skips out on Wi-Fi. Both Watch 3 variants include dual-band Wi-Fi alongside Bluetooth, giving them more independence from the phone.

There’s also no speaker on the Lite, so phone call support and media playback are limited to notifications only. The mic is still present, but its functionality is constrained by the simplified OS and lack of voice assistant support.

Overall, the Lite feels like a step down in processing power and versatility, but it doesn’t feel underpowered for what it’s meant to do. It’s a watch built for essential tracking and notifications rather than full smartwatch capability.

Battery life

Battery endurance on the OnePlus Watch Lite is strong relative to its price and size. With a 339 mAh cell the company claims up to 10 days of max use which sounds about right. Around a week is what you get with typical mixed usage and around 4 days with always‑on display active. Charging from zero to full takes roughly 90 minutes, and a brief 10‑minute top up promises around 24 hours of additional runtime.

Comparing that to the larger OnePlus Watch 3 models shows how different design priorities change the experience. The 47mm Watch 3 uses a 500 mAh battery that delivers up to 5 days in smart mode and up to 16 days with power saving engaged. In practice, heavy use pulls that down, but it still outlasts many Wear OS competitors thanks to OnePlus’ custom battery management.

OnePlus Watch Lite*

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In real terms the Lite’s battery life feels closer to the larger Watch 3 in everyday usage than to the smaller one. You get more days between charges than the 43mm Watch 3 sees under typical use, even though the Lite lacks some of the background features that tax the bigger models. This points to efficient power use across sensors and the display, which helps if you want multi day tracking without managing charge every night.

Where the Watch 3 models clearly differ is in their use of power saver modes. The 47mm Watch 3 stretches battery life further when you drop functionality, and that is helpful on longer trips. The Lite offers simple charge and go longevity without special modes.

OnePlus Watch Lite vs Watch 3 range: Tech specs comparison

OnePlus Watch Lite review: Health & fitness tracking

Health tracking on the Watch Lite is one of the areas where it holds up well. Which is not really surprising as this is essentially a fitness watch.

You get the usuals, such as 24/7 heart rate monitoring, SpO2 readings, mindfulness tracking, wrist temperature and sleep data with stages. It’s all the stuff I used regularly on the Watch 3 range. And to be honest, I didn’t feel like I was missing much on the Lite.

The one omission is ECG, which was only on the larger Watch 3 anyway, and not something I relied on much day to day. Mind you, the sensor is there. It just hasn’t been enabled yet for the UK region. In some other regions it does work – so it’s just a matter of time before the company secures regulatory approval to allow its functionality in this country.

The sleep tracking breaks things down into light, deep and REM stages, plus overall sleep time and trends. It’s basic but useful, especially if you just want a quick read in the morning without getting lost in graphs. Heart rate tracking felt accurate most of the time, though it’s a little slower to respond when your heart rate spikes quickly. Not a huge issue unless you’re constantly jumping between states, and for general wellness tracking, it’s solid.

The wrist temperature sensor is still here too, and while it doesn’t give you moment-to-moment feedback, it adds a bit more context to your overnight data. I’ve always found it more useful over time rather than as a standalone number. Mindfulness tracking runs in the background and just shows up as a score based on heart rate variability, which is fine for getting a general feel for recovery or pressure through the day.

Also worth mentioning is the 60 second wellness checkup, which spits out some novel things. For example, arterial stiffness and vascular age. Both are indicators of the elasticity of your blood vessels.

All of this info syncs into the OHealth app, which I think is one of the cleaner options out there. The layout’s simple, the trends are easy to find, and it doesn’t try to be too clever. There’s not much in the way of insights or recommendations, but the core data is clear and consistent. If you just want to keep an eye on your health without going deep into metrics, the Watch Lite handles it well. It tracks what matters and leaves out the fluff.

OnePlus Watch Lite review: Sports tracking

The Watch Lite handles workout tracking better than I expected for something in this price range. It covers a wide range of activity types, over 100 modes in total, so whether you’re out for a run, lifting in the gym, or doing something more niche like hiking or rowing, it’s probably in the list. There’s also automatic detection for a few common activities like walking and running, which kicks in reliably enough.

GPS performance has been solid, even in Central London. It locks on quickly before a session, and once connected, the signal stays stable even in tougher spots like tree cover or around tall buildings. The dual-band satellite support definitely helps here, and I’ve seen similar performance to the Watch 3 models. That part feels consistent across the lineup.

Heart rate tracking has also been accurate overall. I tested the device next to a Garmin Forerunner as shown in the screen-shots below. Multiple runs showed only a difference of 1 or 2 beats per minute for average and maximum heart rate. No doubt, this is helped by the thin design and light weight. It means the device sits flush against your wrist and doesn’t move much when you exercise.

The watch displays core stats like time, distance, pace and heart rate live during workouts, and you can view your route and summary data afterward in the OHealth app. It’s not loaded with training tools or deep analysis, and you won’t find third-party sync support, but for straightforward workout logging, it does the job.

You even get things such as running form metrics, but for some reason I could not find a VO2 estimate. Not sure if it is hidden away somewhere or is yet to be added to the app.

OnePlus Watch Lite review: Smartwatch features

As far as smartwatch features, Watch Lite runs on OxygenOS Watch 7.1. This is a lightweight operating system built for speed and simplicity. The device is not trying to match Wear OS or Apple Watch in terms of smart features, and that’s clear from the moment you start using it. But you do get the basics.

Notifications show up on time and are easy to read. This is good for staying on top of things and it works well enough.

There’s no speaker here, so while the mic lets you take calls, you’ll need to use earbuds or grab your phone to actually talk. It’s not ideal for long conversations, but it works for quick responses.

There’s also no music storage, so you can’t load up playlists for offline use like on the Watch 3. Media controls include play, pause and skip when your phone is nearby. That might be enough for most people, but if you’ve used a watch with proper offline music, you’ll notice the absence.

NFC is also there. But, again, it is limited in functionality. You can’t actually use it to hold bank cards. Its functionality can be used for things such as key fobs.

OnePlus Watch Lite*

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One small feature that’s useful is support for dual phone pairing. You can connect the Lite to two phones, say, one for work and one personal, and get notifications from both. It’s not something you see often. As mentioned, connectivity is Bluetooth-only. So no Wi-Fi or LTE options. And with no app store, what you get out of the box is what you’ll have to do with.

Mind you, the everyday tools are all there. Alarms, timers, and media controls are simple but solid. The interface feels like it was designed specifically for this device, which keeps things smooth. Swipes and taps are fast, and you don’t run into the kind of sluggishness or weird transitions you sometimes get on more bloated systems.

*We are a review site that receives a small commission from sales of certain items, but the price is the same for you. Purchasing items by clicking on links in this article allows us to run this website. We are independently owned and all opinions expressed here are our own. See our affiliate disclosure page for more details.

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The post OnePlus Watch Lite review: Lower price, familiar clean experience appeared first on Gadgets & Wearables.

I’ve been using it to see if it helps with my tennis elbow and sore shoulder. Here’s what it’s like to live with a wearable light therapy device that promises recovery without the fuss.

Prungo FluxGo: One minute review

FluxGo is for people who are dealing with a specific issue and want something they can actually stick with. You’re not buying a smart device with tracking or a panel that lights up half the room. You’re getting a focused, portable setup. That’s the design. If you want to deal with sore knees, stiff shoulders, tight hamstrings or anything else that needs repeat attention, this gives you a way to do that without changing your whole routine. Strap it on, press a couple of buttons and move on with your day.

You feel it straight away. There’s a clear calming effect after each session. It’s not a magic fix that resolves the problem in a single go. But the area feels better almost immediately, like the edge has been taken off. With regular use, that effect builds. The soreness eases off faster, movement gets easier, and it feels like the recovery process is actually shifting. That lines up with what this type of light therapy is meant to do.

The strap system takes a few tries to get right, and it won’t sit perfectly on every part of the body without adjustment. But once you’ve figured out the best fit for your use case, the setup becomes easy to repeat. You can use it while working, watching something or walking around the house.

This is not a general wellness device for full-body recovery. It’s not made for that. It’s for people who have one or several areas that need regular attention and want something they can use without thinking about it. If that’s what you’re after, FluxGo makes sense.

You can check out Prungo FluxGo on Prungo’s website. Use code INY15 at checkout for 15% off.

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Prungo FluxGo: Design, hardware

Look & feel

The FluxGo comes in a compact zip-up case. The whole thing is small enough to throw in a backpack and sturdy enough not to feel disposable. Inside, the three modules are docked in place, with the strap and cable tucked in the appropriate departments. You open the box and immediately understand what everything does.

Each module is roughly palm-sized, 72 x 48 x 29 mm as per my measurements, and weighs around 115 grams. That weight is noticeable in the hand but not excessive. It gives the impression of proper hardware rather than a lightweight wellness gadget.

In use, it feels most at home on bigger joints like knees or shoulders where there’s enough space to lay out the modules and get the strap sitting tight without much hassle. That said, you can still wrap it around smaller areas if you’re willing to tweak the setup a bit.

On the top of each module there are two physical buttons. That’s the only control. No smartphone app or any such non-sense.

Press one button to start, the other to cycle through the three modes. Simple and to the point. A small LED display shows which mode you’re in and a countdown timer. It’s visible but not distracting. Just as it should be.

Getting everything aligned takes a bit of patience at first. The modules don’t automatically sit flat on curved areas, so you’ll need to adjust angles and spacing. Once you’ve figured out the right layout for a body part, it becomes repeatable. The modules stay put even if you move around or change position. It also takes a bit of time to figure out how to connect the strap to the modules. But, as mentioned, you don’t really need an instruction booklet. After a bit of experimenting you will get the hang of it.

The modules are rated IP65, so sweat and splashes aren’t a problem. You don’t need to baby them during use, but they’re clearly not meant for showers or full water exposure. Overall, the materials and construction feel deliberate and durable. Nothing feels fragile, decorative or overdesigned. It’s a tool that expects to be handled often and without ceremony.

You can take this thing anywhere. It’s light, it packs down small, and it doesn’t make a big deal out of itself. Throw it in a gym bag, use it at home, bring it on a trip, whatever. It’s made to be used.

Worth mentioning, this isn’t my first red light therapy device. I tested the Kineon Move+ Pro a few months back, and I’ll be doing a separate piece soon that looks properly at how the two compare.

Purely on design, though, I’d lean toward Prungo. The light modules are noticeably larger than the ones on Kineon, which lets you cover more area at once. The strap setup is also simpler and quicker to deal with. Add in the lower price, and Prungo starts to look like the more practical option overall.

Under the hood

Each module in the FluxGo uses a mix of red and infrared light. You get 18 red LEDs at 660 nanometres and 12 laser diodes at 850 nanometres. The lasers are VCSELs, which means the beam is more focused than what you get from standard LEDs. There’s also a lens in front of the light source and a polarising filter over the infrared to help push the light deeper. Prungo says it can reach three to five centimetres into tissue depending on the area.

There are three modes to pick from, Mild, Mid and Strong. Each one runs a timed session. Mild is 8 minutes, Mid is 15, Strong is 20. You control it using the buttons on top of each module. In the strongest setting, the LEDs put out just over a watt per module, and the lasers stay at 48 milliwatts. Prungo lists the surface irradiance between 65 and 100 milliwatts per square centimetre depending on the mode.

Here’s a table that cleanly lays out the performance in each mode.

When a session ends, the module gives a short beep and shuts off. Built-in safeguards cover overcurrent, overvoltage and low battery shutoff.

Battery life

Each module runs for about 75 minutes per charge. That’s enough for at least three or four sessions depending on the mode. You can see a tiny battery left percentage on the display of each module.

Prungo FluxGo Red Light Therapy Device*

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Charging is done through the case, which also works as storage. It has a built-in 10000 mAh battery and can recharge the modules several times before you need to plug it in. Just drop the modules into the slots and they click into place. No cables, no lining anything up. The case charges over USB-C and has a row of lights on the front to show how much juice it’s got left.

There’s also a little proprietary cable in the box that you can use to charge a pod without the storage case by connecting directly to a USB port. Which might come in handy on occasion.

Tech specs

Prungo FluxGo: How to use

There’s nothing complicated about using the FluxGo. As mentioned – press and hold the power button on the module to turn it on. Then press the mode button to cycle through Mild, Mid or Strong. Once you’ve picked a mode, hit the power button again to start the session. That’s it. Each session runs on a timer, so you don’t need to watch the clock.

You can use one, two or all three modules at once. Strap them where you want them, line them up as flat as you can, and let them run. If you’re covering a knee or shoulder, it’s easy to stack the modules side by side. For a longer muscle like a hamstring, you can spread them out a bit more. You’ll need to tweak the position sometimes during the first few tries, but once you’ve figured out your setup, it’s quick to repeat.

You don’t need to stay still while it’s running. Most people just wear it while sitting at a desk, watching TV or moving around the house. Under the light, you will feel a bit of warmth that sinks in deep. Once the session ends, the module beeps and shuts off. You can restart it or switch modes right away if you want another round.

Pick one area and use it every day. That’s how you’ll actually see results. It’s not something you use once and forget about. The company suggests you use it twice per day on the effected areas.

For smaller aches, you might feel a difference after a few sessions. If it’s something more stubborn, give it a couple of weeks. After you’re done, give the modules a quick wipe if they’re sweaty and drop them back in the case so they’re ready to go again. That’s all there is to it.

Effectiveness

Of course, the all important question is – does it work?

I’ve been using it mainly for tennis elbow, which I somehow picked up without actually playing tennis. It’s been nagging me for months. The same strain, picked up while carrying wood, also left my right shoulder sore.

From the first session with Prungo, I felt immediate relief. More of a soothing effect than anything dramatic. It didn’t fix my elbow or shoulder in one go, but after each session there was a clear improvement. The aching felt dialled down. I’ve been using it on those areas a few times a day, and over time I can feel both the tennis elbow and the shoulder slowly improving. There’s definitely a noticeable difference.

And my view seems to be in line with what you see on Reddit, Trustpilot (where it has a 4.4 rating out of 5), and other social and review sites. Most people using FluxGo say it helps if you stick with it.

You see a lot of posts about joint pain easing up after a week or two of regular sessions, especially for knees, shoulders and elbows. It’s not instant but people talk about less stiffness, quicker recovery and being able to move more easily after using it daily. A few mentioned that when they stop for a few days, they feel it. The soreness creeps back in. That matches up with how this kind of therapy usually works.

Plenty of users also compare it to red light panels and pads, saying FluxGo works better in smaller areas and is easier to wrap around joints. Some say they feel a warm, relaxing sensation during a session and more flexibility afterwards. It’s not all glowing reviews. A few say they didn’t notice much at first or that it took a while before anything changed. But the general takeaway is that if you use it regularly, and you’re not expecting miracles, it can actually make a difference.

This isn’t for full-body stuff. It’s for hitting one spot over and over. Easy to use, easy to stick with. That’s what makes it work.

What about the science?

There’s actual science behind red and infrared light therapy. Research into photobiomodulation, which is the formal name for this kind of low-level light treatment, shows it affects cells and tissues in specific ways.

Light in the 660 and 850 nanometre range interacts with mitochondria inside cells, which can boost ATP production, improve blood flow, and reduce inflammation and oxidative stress. This mechanism is well described in a widely cited review published in the journal Medicine, which explains why these wavelengths are commonly used in clinical rehab and pain management settings.

Prungo FluxGo Red Light Therapy Device*

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When you look at outcomes, the evidence is fairly broad. A large systematic review published in BMJ Open found that red and near-infrared light therapy can reduce pain and improve function in people with musculoskeletal conditions, including knee osteoarthritis and chronic joint pain.

Other reviews have reported benefits for conditions like fibromyalgia, lower back pain, and post-surgery recovery, especially when treatment is applied consistently over time rather than as a one-off session. For example, a review in Frontiers in Pain Research looked at whole-body red and near-infrared light exposure and found reductions in pain scores and improvements in quality of life for people with chronic pain conditions.

It’s also worth saying that results aren’t identical across every study. Some trials show mixed outcomes depending on dosage, treatment duration and the condition being treated, as discussed in a recent analysis published in PLOS One.

Still, the overall picture is that red and infrared light therapy can help with pain, inflammation, and recovery when used properly and regularly. Which is exactly the context devices like FluxGo are designed for.

Buy if, don’t buy if

Buy if

• You want to target one or several specific pain or sore spots daily
• You like gear that’s simple to use with no app or setup
• You prefer wearable light over big panels
• You’re okay with putting in a bit of consistent time
• You want something you can toss in a gym bag or backpack

Don’t buy if

• You want full-body light therapy coverage
• You expect instant, dramatic results
• You need data or tracking with an app

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The post Prungo FluxGo review: When red light therapy feels like it’s doing something appeared first on Gadgets & Wearables.

One minute review

The Gen 2 Air trims a few things from the RingConn Gen 2 model but keeps the core experience fully intact. You’re getting pretty much the same sensors, same design, same app, and the same tracking across heart rate, HRV, sleep, temperature, stress, and SpO2. Daily use feels no different, and that’s what matters.

The cuts are sensible. Sleep apnea tracking is gone, which might matter to a few, but not most. Battery life drops slightly, and the switch to a USB-C dock is less ideal for travel, but it’s fine for home use.

The new software features, like the headache alerts and light exposure tracking, work well, and the app finally feels like it’s matured into something properly useful. You don’t have to go hunting through charts anymore just to figure out how you’re doing. Even smaller extras like the ring finder help round out the experience.

At $199, the Gen 2 Air delivers much of what makes RingConn a solid option, just at a lower price. The standard Gen 2, at $299, adds a bit more for those who want the full set of features. Both versions perform well, run on the same app, and benefit from regular updates. Whether you choose the Air or the original model, you’re getting a reliable, subscription-free smart ring that does exactly what it promises.

You can view RingConn devices on the company’s website. View Gen 2 Air on Amazon.

RingConn Gen 2 Air review: Design, hardware

Look & feel

Unboxing the RingConn Gen 2 Air reveals a device that feels very familiar if you’ve used the Gen 2. The same minimalistic, smooth design language carries over, but there are a few subtle changes.

Instead of aerospace-grade titanium, the Gen 2 Air uses a stainless steel build. On the hand, the difference is hard to notice. It still looks and feels premium, but perhaps has a slightly more utilitarian finish. The glossy coating remains, giving it a polished look that doesn’t scream for attention. You still get that same sleek, unisex design that works well regardless of finger size or style preference.

Color options are different this time around. The Gen 2 Air comes in Dune Gold and Galaxy Silver. They’re slightly more understated than the Gen 2’s original palette, but still stylish. RingConn also throws in seven different ring protectors to help customise the appearance and protect against scratches. These accessories also work with the Gen 2 model if you want to mix and match.

In terms of comfort, it’s business as usual. The Air keeps the same internal dimensions and sizing system. That means existing users can stick with their original sizing, and new customers will get the same helpful kit with nine sample rings to try before the real one ships. In my case, I wear size 11 for both the Gen 2 and Gen 2 Air, and the fit is identical.

The slightly different build material means the device is a fraction heavier than Gen 2. The first comes in between 2.5 and 4 grams, the second between 2 and 3 grams. The dimensions are unchanged: around 6.8mm wide and 2mm thick.

On the finger, the device sits flush against the skin and doesn’t catch or get in the way of daily tasks. Like the Gen 2, you can wear it on any finger of either hand, though I still recommend shifting it to a tighter fit (like the dominant hand’s index finger) during exercise for better heart rate tracking.

Water resistance remains solid. The Gen 2 Air is rated for up to 100 meters, so you can swim, shower, or wash your hands without worry. Build quality overall feels robust.

Even though this is a budget edition, there really isn’t that much to separate Gen 2 and Gen 2 Air in terms of design. Put them side-by-side and you’d struggle to tell which is which.

Under the Hood

You might think the Gen 2 Air is a trimmed-down version of the original, but most of the internal hardware has carried over intact. You’re still getting the same core biometric tracking: heart rate, heart rate variability, SpO2, skin temperature during sleep, and stress monitoring throughout the day. So in terms of what’s actually being tracked, not much has changed.

The same trio of optical sensors (infrared, red and green) powers heart rate and SpO2 readings. The accelerometer, temperature sensor and underlying PPG tech are identical to what you get on the Gen 2. So from a pure data-capture standpoint, you’re not losing much by opting for the cheaper Air model.

That said, there is one important omission. The Gen 2 Air does not support sleep apnea tracking. This is a feature that leverages RingConn’s upgraded sensor suite and algorithms on the Gen 2. While it’s not something most users will need on a daily basis, if sleep breathing analysis is a priority, then the regular Gen 2 is the better option.

Connectivity remains the same, with BLE 5.2 and support for airplane mode. EMF-safe mode is also here, for those who care about reducing exposure. Internal memory is unchanged too; you still get about 7 days of on-ring storage, so syncing every day is optional rather than essential.

More than 10 days between charges!

A important shift under the hood is battery performance. The Gen 2 Air tops out at around 10 days of use per charge, which is slightly below the 12 days on the standard Gen 2. Still, this is better than what most smart rings offer. The drop in runtime seems to come down to small changes in hardware power management and the absence of the more efficient chip used in the Gen 2.

The charging system is also different. Instead of a portable case with up to 20 full recharges, the Gen 2 Air relies on a simpler USB-C dock. It works fine for daily top-ups, but loses the travel-ready flexibility of the case. For anyone frequently on the move or wanting to go weeks without plugging into a wall, that may be a drawback.

Even with these changes, Gen 2 Air still performs well in everyday use. The battery drain is steady and predictable, and the device charges quickly. Just don’t expect the same 150+ days between case charges that you can get with the standard Gen 2 setup.

RingConn Gen 2 Air review: Features

Since publishing my review of the RingConn Gen 2, a lot has changed on the software side. The smartphone app has gone through a complete transformation. It now feels like an entirely different product. We’re talking full visual redesign, newly added AI-driven insights, and a stack of features that expand what the ring can actually do.

The best part? All of this works seamlessly across both the Gen 2 and Gen 2 Air. There’s no difference in the app experience. If you’ve used the original version of the app, the new one will feel miles ahead. It’s smoother, better organised, and finally delivers on some of the personalisation promises that were a bit lacking before.

RingConn started out as a crowdfunded project, but it no longer feels like one. The hardware was solid from the start, but what’s changed most is everything around it. The app looks and works completely differently now, the software keeps getting better, and the company seems focused on long-term updates rather than short bursts of hype.

Using the ring

As far as day to day use, the RingConn Gen 2 Air keeps things straightforward. Once paired with the app, it begins tracking in the background without much input.

As mentioned, it covers the same metrics as the full Gen 2, including heart rate, heart rate variability, sleep stages and nap duration, skin temperature during sleep, stress and blood oxygen levels. The only difference is the lack of sleep apnea tracking that you get on its big brother.

The app was pretty bare-bones a few years ago. But now it is much better.

Instead of just showing charts, the software pulls everything into daily summary and weekly lifestyle metrics. When something drifts from your normal patterns, the app flags it and offers guidance. It’s a more useful layer that wasn’t there in the early versions. You still get access to full trends and granular charts if you want to dig in, but it no longer feels like you have to work to understand what the data means.

A recent addition is a headache alert system. It runs in the background and opens a tracking window if it detects something unusual in your heart rate variability, temperature or even local pressure trends. It triggered once for me, but when it did, the timing matched how I had been feeling. No other smart ring, at the moment, offers that feature.

Workout detection has also improved with the addition of automatic tracking. That said, heart rate tracking during high intensity exercise is not great. But that’s the problem with pretty much every other smart ring brand out there. It is difficult to capture heart rate precisely from the finger during such activity.

As you’d expect there’s also an AI assistant. It seems, these days everyone is adding this. Right now, the RingConn can answer basic questions about your data and make workout/health plans, but it still feels like a work in progress.

Beyond that, some new additions include light exposure tracking. It is aimed at helping users understand how ambient light affects sleep and circadian rhythm. Blood pressure trend tracking is also being tested, but it requires calibration with a cuff and isn’t currently available for all users. The app also now includes a ring finder, which helps locate the device if it fell behind the sofa.

Data syncing with Apple Health and Google Fit still works well, so you can plug RingConn into a wider health tracking setup. On the whole, the Gen 2 Air offers the same clean experience as its more expensive sibling, with most of the important features intact and the same improved app driving the experience forward.

You can view RingConn devices on the company’s website. View Gen 2 Air on Amazon.

*We are a review site that receives a small commission from sales of certain items, but the price is the same for you. Purchasing items by clicking on links in this article allows us to run this website. We are independently owned and all opinions expressed here are our own. See our affiliate disclosure page for more details.

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The post RingConn Gen 2 Air review: cuts the extras but keeps the core experience appeared first on Gadgets & Wearables.

Kospet Tank T4: One minute review

The Kospet Tank T4 is a rugged smartwatch that gives you serious hardware for the money. It feels solid, runs for days without charging, and covers most of what you actually use day to day. Dual‑band GPS tracks runs close to a Garmin, the offline maps work better than expected, and you can load music right onto the watch for phone‑free workouts. The speaker and mic add practical everyday smarts like call handling and voice assistant triggers. You also get a huge range of sport profiles and detailed run metrics, even if advanced analytics like recovery scores are missing.

The software isn’t perfect. Apexmove OS doesn’t let you install third‑party apps, and the companion app is just OK compared with bigger ecosystems. Health tracking is solid for basics but doesn’t go deep, and sleep can be a bit patchy at times.

If you expect full smartwatch freedom like a Galaxy Watch or Apple Watch, this won’t be your pick. But if you want a tough, feature‑rich wearable that handles workouts, tracks routes, plays music, and keeps going for days without panic charging, the Tank T4 delivers very good value for its price.

View on Kospet or Amazon.

Kospet Tank T4 review: Design, hardware

Look & feel

The Tank T4 looks and feels like something that’s built to be used hard. The case and back are made from Inox 360 stainless steel, not just brushed metal over plastic. It has real weight to it and feels like one solid unit when you pick it up. Kospet calls the design “Inox shield” and that makes sense. It doesn’t flex, it doesn’t creak, and nothing about it feels fragile. This isn’t just rugged by appearance, it’s rugged in the way it responds to wear and knocks.

It’s been certified to MIL-STD-810H and passed 20 different lab tests. That includes extremes like dust, shock, drops, salt spray, vibration, and temperature swings. It’s rated to handle down to minus 58 degrees Fahrenheit and up to 158 degrees, which is beyond what most people will ever need. The IP69K and 10 ATM waterproofing also go further than the typical fitness watch. You’re not just protected against rain or splashes. The watch can handle high-pressure water jets and diving up to 45 metres. It even has dedicated freediving, scuba and gauge modes, which most watches in this price range don’t even attempt.

Size-wise, it’s big. The case is 48.6 millimetres wide and 13.7 millimetres thick. On my small wrist it definitely looks oversized. The 77 gram weight without the strap is noticeable, especially if you’re coming from something lighter. I had no problem with this, apart from when running. In those instances I did have to readjust it so that it sits a bit higher on my wrist. But again, that’s because I have small wrists.

The default strap is a soft liquid silicone and uses 22 millimetre quick-release pins. So swapping bands is quick and easy. You have lots of other options including some leather ones.

The screen is good. It’s a 1.43 inch AMOLED with 466 by 466 resolution. Yes, there is a bit of a glare in sunny conditions – but that is typical of such displays. Kospet rates the panel at 1000 nits. It includes an ambient light sensor for auto-brightness and that worked well throughout testing. There’s also Gorilla Glass 3 over the screen and during my time with it, I didn’t see a single scratch. It also has a slightly raised bezel, which helps protect the glass without making it feel sunken.

If you wish, you can enable the Always-On Display. It switches to a simplified clock when idle and wakes instantly when you raise your wrist. The touchscreen is smooth and responsive. I didn’t notice any lag when swiping through menus, starting workouts or tapping into widgets.

The four-button layout is well executed. They’re placed symmetrically on each side of the case and give firm, reliable feedback. You can also lock the touchscreen during workouts and rely on buttons alone.

All in all, I would say the watch punches well above its price-tag as far as build. In fact it reminds a lot of the Amazfit T-Rex range and Garmin watches. The Tank T4 is big, bold, and has textured metal buttons, exposed screws, and an industrial edge to the shape. But it’s not sloppy or rough around the edges. There’s a polish to the design that makes it wearable in daily life too.

If you have small wrists like I do, be aware that it’s going to look big. And heavy. It feels like a real tool, not an accessory. But if you want a watch that can handle impact, bad weather, full submersion, and still run for over a week without charging, this one does exactly that.

Under the hood

Under the hood, the Tank T4 packs in more hardware than you might expect from a watch in this price bracket.

The first thing that stands out is the storage. With 16 MB of SRAM and 32 gigabytes of internal space, it comfortably holds music files, offline maps and workout routes. This amount of storage is exceptional for a non-Android smartwatch. Most budget smartwatches offer little or no storage, so being able to leave your phone behind and still have access to both music and detailed GPX maps is a major plus. Kospet claims it fits roughly 5,000 songs or 100 offline maps.

The dual-band GPS chipset is another standout. It connects to the main satellite systems and supports both L1 and L5 frequencies. I noticed that it locks on quickly and maintains a steady signal, even in built-up areas or under tree cover. The watch also uses an onboard algorithm to estimate positioning when signal is briefly lost, which helps keep tracking consistent.

Sensor-wise, you get an optical heart rate module uses four photodiodes. It tracks heart rate continuously and also powers stress and blood oxygen measurements. There’s an onboard accelerometer and gyroscope for motion tracking, a geomagnetic sensor for directional data, and a barometric sensor that feeds into altitude and slope readings.

Audio hardware is integrated too. There’s a microphone and speaker that handle Bluetooth calling when paired to a phone. The audio is basic but functional. It’s good enough for taking short calls or hearing audio prompts during workouts. The mic can also be used to trigger your phone’s voice assistant, which can come in handy if your hands are full.

Battery life

Battery life on the Tank T4 is one of the things that sets it apart. With regular daily use, it is good for nearly two weeks between charges. And that’s without making any real effort to conserve power. I left auto-brightness enabled and used the screen freely during workouts. Also, I switched on all the health and fitness tracking bells and whistles.

When I pushed it harder with longer GPS sessions, a couple of hours of music playback, and Always-On Display turned on, the battery still held up for five to six days. Which is still pretty good. No doubt, the lightweight Apexmove OS contributes to the long battery life. You are not getting a wearOS experience here.

Charging is done through a magnetic dock and takes just under two hours to go from empty to full. There’s no fast charge, but honestly, it never felt like a downside. Once topped up, the battery lasts long enough that I could stash the cable in a drawer and forget about it for a week or more.

Kospet also sells an optional portable charger that snaps onto the back of the watch. It gives you a full recharge without needing a cable, and I’ve got to say, I’m sold. It’s perfect for topping up during travel or just skipping the charger altogether on trips. This was the first time I’ve used a power bank designed specifically for a watch, and it makes a lot of sense.

Kospet Tank T4: Tech specs

Kospet Tank T4 review: Health & fitness tracking

The hardware on the Tank T4 really impressed me, but the Apexmove smartphone app experience doesn’t quite match it. When it comes to health tracking, it handles the basics well enough, though it doesn’t stretch far beyond that.

Heart rate is monitored continuously, and you can set alerts for unusually high or low readings. Accuracy is solid most of the time, though during intense spikes I noticed a bit of lag, which is pretty typical for wrist-based sensors.

SpO2 tracking works both on demand and in the background. I kept it running all day and didn’t notice any major impact on battery life. There’s also stress tracking and something called Mood tracking, which for some reason consistently pegged me as “peaceful.”

What’s missing is HRV. There’s no direct HRV metric shown anywhere, which feels like a missed opportunity. It may be used behind the scenes for stress or mood estimates, but there’s no standalone stat. You also don’t get skin temperature readings.

Step tracking, calories, and distance are all recorded automatically. Step counts matched closely with my other devices. You’ll also get reminders to move if you’ve been still too long, though those can be turned off if they get annoying.

And while those stats seem accurate enough, the accuracy of sleep tracking can be a bit patchy. At times it overestimated or underestimated my sleep session. On one occasion when I removed my watch for a couple of hours, it marked that as sleep. So that could benefit from some improvements.

If you are looking for the basic health and activity stats – the watch will do the job. But if you want full-blown analysis or clinical accuracy, this probably isn’t the platform.

Sports tracking

I’m a keen runner, so I like to put any new watch through its paces on the track. With the Tank T4, I got mixed results.

The dual-band GPS is actually pretty decent, locking onto GPS only slightly slower than the Garmin, and tracking distances within a reasonable margin. On a 7.5 km route, it recorded 7.5 and 7.35 km across two outings, compared to the Garmin’s consistent 7.51 km. On a shorter run, it logged 4.92 km versus Garmin’s 5.01 km. That’s within a few percent of one of the top GPS systems out there, which is impressive for a rugged watch at this price.

Heart rate accuracy was a bit hit and miss at first. On the two 7.5 km runs, the Tank T4 showed spiking heart rate values in the first 30 seconds to a minute. After that, things would settle down and the readings matched the Garmin closely. But those early spikes can mess with your average and zone stats, especially if you’re using the data for structured training. I think part of the issue comes down to the weight of the watch. On small wrists like mine, it can shift during the first few strides and throw off the sensor.

For the third run, I wore it slightly higher up the arm and cinched it tighter. That seemed to do the trick. The Tank T4 recorded an average heart rate of 147 bpm and a max of 166, compared to 147 and 164 on the Garmin. Once it’s positioned correctly, the sensor is solid. It just takes a bit of trial and error to get it dialled in.

As far as other stats, you get quite a bit. This includes pace, elevation changes, stride length, cadence, running power and Training Effect. VO2Max is also there, but for some reason after three runs I did not give me a value. Perhaps it takes a few more runs before it spits out an estimate.

What I feel is missing is recovery data. Most watches these days have something that gives you an indicator whether you should push hard on a particular day or take it easy. You don’t get that on the Kospet.

But what you do get is support for 23 ApexMotion sports modes and 160 freestyle training modes. Including three dedicated dive modes. In pool or open-water swim mode, it tracks SWOLF (swimming efficiency), stroke style recognition, stroke rate, laps and heart rate underwater. Essentially, there is a tracking profile for almost any exercise you can think of – from common workouts to niche or “freestyle” activities.

Maps

The Tank T4 handles offline maps better than I expected at this price. You do need to download the maps via a standard browser and connect your watch to the computer to do the transfer. So it’s not as easy as it could be.

Once the map is on the device, it shows up as a proper visual route, not just a breadcrumb trail. You get a clear top-down view, and your location is shown live as you move. It’s basic but very functional, and more than enough for trail runs, hikes or bike routes.

During a few test runs, I used preloaded GPX tracks and followed the path on screen without needing my phone. It doesn’t give turn-by-turn directions, but it does keep you aligned with the route and notifies you if you stray off it. The route-back feature also works well. It just guides you along your original track in reverse, which is great if you’re deep into a trail and want to get back without thinking too hard.

Map files are stored locally using the watch’s 32 GB of storage, so you’re not relying on a network connection once they’re loaded. . The screen is sharp enough to see the lines clearly, and zooming or panning is handled with simple gestures or the side buttons.

You can’t download map tiles like a Garmin or use heatmaps, but for following set routes, it works. As long as you’re comfortable prepping your GPX files in advance, it adds a lot of value, especially for outdoor use. It turns the T4 into a self-contained navigation tool, which is something you usually don’t see at this level.

Kospet Tank T4 review: Smart features

The Tank T4 runs on Kospet’s in-house Apexmove OS, a streamlined system built for fitness and outdoor use. The interface is focused on health stats, workout tracking, and navigation, with customisable widgets, watch faces and shortcut cards. You also get fitness badges and syncing with services like Strava and Apple Health.

Unlike Wear OS or watchOS, Apexmove doesn’t support third-party apps or an app store. Everything is built in, which keeps things simple and helps stretch the battery. Core smartwatch features are all here, and the system feels stable and responsive.

Notifications from your phone come through reliably. You can preview messages, app alerts, and calls. Android users can send quick replies or reject calls with canned responses. On iOS, you get the alerts but not the replies.

The built-in speaker and mic set the T4 apart. You can take Bluetooth calls straight from the wrist as long as your phone is nearby. Audio is decent for quick conversations, and the mic lets you trigger your phone’s voice assistant. It’s not a full assistant on the watch itself, but it saves you reaching for your phone.

Music features are solid. You can control playback or load MP3s directly and easily to the watch thanks to its large internal storage. Pair it with Bluetooth earbuds and you’re set to train without a phone. Or do the music playback via the watch speaker. File transfers can take quite a bit to come through, but playback is smooth once loaded.

There’s also a walkie-talkie mode for short-range voice messages between two Tank T4 or M4 devices. It doesn’t need a phone connection and could be handy for hikes or group workouts.

The rest of the features are familiar but well executed: weather, stopwatch, timer, alarm, flashlight mode, calendar, calculator, along with find-my-phone. You don’t get contactless payments or downloadable apps, but what’s here is well-rounded and better than many rugged watches at this price. If you’re not expecting full smartwatch flexibility, the T4 delivers.

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The post Kospet Tank T4 review: The rugged AMOLED watch that punches above its price appeared first on Gadgets & Wearables.

I’ve been testing an early unit that’s close to final in both design and performance. I must say it’s unlike anything I’ve used before – a different kind of recovery tool. What follows are my impressions after several weeks of use.

One minute review

The Ultriix S1 offers something different from the usual recovery tools. It doesn’t punch or pulse or vibrate on the surface. Instead, it uses therapeutic ultrasound to work below the skin in a much quieter, more focused way. If you’re looking for instant impact, this probably won’t feel like much. But if you want something low effort that can slot into a regular routine, it starts to make sense.

I’ve been using a near-final unit for a few weeks. It works exactly as described, and I can confirm the hardware feels close to finished. That said, I wouldn’t say my muscles feel drastically different. This isn’t something you use once and feel transformed. It’s more about consistency, and a few weeks is simply too short to judge long-term results. That said, I did feel immediate relief when using it on my tennis elbow, which made it easier to get back to training.

What the machine offers is convenience. One button, clear lights, no learning curve. You apply gel, press it to the skin, and let it run. Being cordless means you’re not tied to a socket, which makes it much easier to use on the fly.

Right now it’s available through the crowdfunding campaign. Early bird pricing starts at $89, while those who signed up ahead of launch can access a $79 tier. That feels very reasonable, considering the build and functionality. And it is also much lower than the $199 it will sell at when it hits general retail. Shipping is scheduled to begin in late February 2026.

The gadget is not aiming to replace clinical equipment, but it goes further than many basic consumer models, both in design and power output. Ultriix S1 won’t be for everyone. But if you’re dealing with post-workout soreness or daily stiffness, it might be the kind of tool that quietly earns a permanent spot in your recovery kit.

Disclaimer: This article is based on personal use and should not be considered medical advice. The Ultriix S1 is a consumer device and not intended to diagnose, treat,or prevent any medical condition. Always consult with a qualified healthcare professional before starting any new therapy, especially if you have existing injuries, implants or health conditions. 

Design, hardware

For disclosure – I received an early test unit for this review. It’s close to final in both hardware and function. This review is not sponsored, and there are no affiliate links. With that out of the way, let’s get into it.

Out of the box, the Ultriix S1 Tissue Shocker looks more like a large flashlight than a medical device. It’s not heavy, definitely light enough to throw into a gym bag. The finish on the unit is clean, though the sample I received has a bit of a sharp edge near the base. According to the documentation, that’s something that’ll be smoothed out in the final version, so I haven’t held it against the build quality too much.

There’s only one button on the entire unit, and while that keeps things simple, it takes a moment to get used to how it works. You hold to power on, and then tap to cycle through the eight intensity levels. Four LED indicators on the front give you a rough idea of where you are, with flickering representing odd-numbered levels and solid lights for even ones. It’s a simple indicator and control system that works just fine.

In the hand, the thing is ergonomic enough. The handle is curved to sit comfortably in the palm, though I did notice it getting a little warm during longer use. Apparently that’s normal and down to internal components rather than the battery. I didn’t find it uncomfortable, but it’s something worth mentioning.

There’s no vibration and you can only hear a faint buzz when it’s active. That might throw some people off, especially if they’re coming from massage guns like I am. But if you place your other hand on the opposite side of your leg or arm, you can feel a gentle internal vibration and warmth building up. It’s subtle, but it’s there.

Visually, the device looks pretty decent. It is very portable and doesn’t look cheap either. It blends in well if you have massage guns or other fitness gear. Another device to add to your recovery arsenal.

Under the hood

The Ultriix S1 Tissue Shocker has a simple external design, but there’s clearly been some thought put into the internal layout. It uses a 1.1 MHz ceramic transducer, a common frequency in physical therapy designed for deeper tissue penetration. The energy is spread across a slightly wider surface area than many similar devices, which may help with coverage and consistency.

There are no moving parts or fans, and nothing mechanical aside from the physical button. That gives it a clean feel in use and helps explain why it’s so quiet when it operates.

A built-in temperature sensor monitors the head during use. If the surface temperature climbs to around 43 degrees Celsius, the system automatically reduces output to avoid overheating. The warmth comes from internal components rather than the probe.

Ultriix also includes a no-load detection feature that stops the device from transmitting if the probe is not touching the skin. This is designed to prevent misuse, and it seems to work exactly as intended.

During operation, after a while you might hear a faint ticking noise coming from the internals. This appears to come from the inductors on the circuit board. It’s a normal artifact of how the electronics regulate current and doesn’t affect performance. I rarely noticed it.

There are multiple safeguards in place. The system will cut output if the probe isn’t in contact with the skin, and it will throttle down automatically if surface temperature climbs too high. There’s also no manual frequency adjustment – everything runs at a fixed setting, which simplifies use but limits fine-tuning.

Battery life

The Ultriix S1 is fully cordless, which makes it easy to use wherever you are. There’s no need to stay tethered to a power socket, so you can take it to the gym, use it post-run at the park, or just keep it in your bag for whenever stiffness creeps in.

Power is handled by an internal battery setup that seems to hold up well for short, daily sessions. You don’t need to charge it after every use. I managed to get well over a week on a single charge, despite multiple daily 5 to 10 minute sessions.

It’s worth mentioning that the internal battery is not user-replaceable. But the unit includes a one-year warranty.

The four LEDs double as battery level indicators. When the device is idle or charging, they give you a rough sense of how much charge remains. It’s not ultra-precise, but it’s enough to avoid surprises. Fast charging is supported via USB-C, which helps if you’re topping it up in a rush. I actually haven’t had to think much about battery life during use, which is exactly how it should be for a recovery tool like this.

Tech specs

How it works

Now for the science lesson.

The Ultriix S1 uses therapeutic ultrasound to deliver energy beneath the surface of the skin. Inside the head of the device, a ceramic element produces high-frequency sound waves at 1.1 MHz. These waves travel through the skin and into deeper tissues, typically reaching between 3 and 6 centimetres below the surface. This allows it to target muscles and joints in a way that surface-level tools cannot.

Ultrasound therapy works through a combination of mechanical vibration, internal warmth, and microscopic pressure shifts. The sound waves create small movements in the tissue that can help stimulate repair processes. At the same time, they generate a warming effect in the deeper layers, which may support circulation and reduce stiffness. Furthermore, the pressure changes at the cellular level can improve fluid exchange – which plays a role in recovery.

For the energy to pass efficiently into the body, it needs a conductive medium. That’s where the gel comes in. Applied directly to the skin, the gel eliminates air between the probe and the body, allowing the ultrasound to move cleanly into the tissue. Without it, most of the energy would bounce off or lose strength before it reaches its target. So you can’t use the device without the gel.

Ultriix S1 feels different to other recovery tools. There’s no pulsing, no surface-level vibration, and no electrical stimulation. Instead, you get a quiet, gradual sensation – something like a soft internal buzz or warmth building up under the skin.

It feels very different from tools that vibrate or punch the surface. The sensation builds slowly – more of a gentle warmth and internal buzz than anything obvious. You might not notice much in the first minute or two, but it becomes more apparent the longer it’s applied.

What it’s like to use

The first time I tried Ultriix S1, I wasn’t sure it was working. But after a little while, I started to feel a soft, internal warmth and a slight buzzing sensation under the skin. It’s subtle, but it becomes more noticeable the longer you use it, especially if you press your other hand on the opposite side of the area you’re treating.

Operation is simple. You hold the button to turn it on, then tap to cycle through the eight intensity levels. The LED lights let you know roughly where you are in the range. One light flickering means the lowest level, and solid lights indicate the even-numbered steps. There’s no sound or haptic feedback, so you have to rely on the lights.

I used it mostly on my legs, after long runs or long periods sitting at a desk. It’s best with up to a few minutes per area. For larger muscles like the quads or hamstrings, I sometimes went a bit longer.

The head moves smoothly over the skin, as long as the gel is applied generously. I found that applying the gel directly to the skin was the easiest way to get even coverage. It spreads easily and wipes off without much effort. For best results, the makers suggest combining it with light massage or foam rolling beforehand.

I also used it regularly on my elbow, where I’ve had ongoing issues from tennis elbow. After just a few minutes of treatment, I could noticeably feel the pain drop off. The relief was temporary, but it made everyday tasks more manageable and kept the discomfort from escalating. I started with higher intensity levels but found them a bit too much, so I dropped to a mid-range setting, which felt more comfortable.

It should be noted that Ultriix doesn’t give the instant hit of a massage gun. But that’s part of its appeal. You’re not trying to force anything. You just sit still, move it gently and let it work. After a few days of use, I started to reach for it without really thinking about it, especially after tougher workouts.

And although I did feel immediate relief from tennis elbow, I can’t claim to have seen a drastic impact on muscle recovery just yet. A few weeks of testing isn’t enough to draw strong conclusions, and the effects are likely to be gradual rather than dramatic. To be fair, the same goes for massage guns. It’s hard to know how much of a difference they make unless you’re using them consistently for a long time. How much Ultriix actually helps is something that will take more time to figure out. But the underlying technology is well established.

Safety and caveats

Ultrasound therapy has been used in clinical settings for decades. It’s generally considered safe when used properly. The Ultriix S1 is designed with that in mind. It operates at a lower output than hospital-grade machines, but higher than many of the weaker handheld models.

As mentioned, there are two main features built in to prevent accidental misuse. First, the device includes temperature protection. Second, it has a no-contact sensor that disables the ultrasound output unless the probe is pressed directly against the skin. That stops it from running while idle or if held away from the body.

The sensation is subtle but the energy being delivered is real, and for that reason it’s important to follow a few basic usage rules. Areas with broken skin, recent injuries, or metal implants should be avoided. It shouldn’t be used over the heart, eyes, or head, or anywhere near electronic implants. Conditions like severe cardiovascular disease, fever, or uncontrolled diabetes are also listed as reasons to avoid use. For users recovering from surgeries or managing complex conditions like spinal stenosis, the company advises extra caution.

Ultrasound therapy isn’t meant to replace medical treatment, and this device isn’t for diagnosing or treating underlying conditions. But for general recovery – especially muscle tightness and joint discomfort – it’s a low-risk option when used on healthy tissue. The treatment is non-invasive, and the energy it delivers is absorbed by the body rather than causing irritation at the surface.

So far in testing, I haven’t noticed any unusual sensations or after-effects. The warming is gradual, and it never feels like the device is forcing anything.

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The post Ultriix S1 Tissue Shocker review: Testing a new kind of recovery tool appeared first on Gadgets & Wearables.