Smart scales connect wirelessly to your smartphone, tablet or computer. Step on one of these, and your weight data will find its way to a corresponding app on your mobile device or a Web dashboard. Using the app or dashboard, you can then track your progress over time.
Scales that also measure body fat do this by sending a low electrical current through one foot and reading the current with a sensor under the other foot. The current passes through fat more slowly and the scale calculates the amount of resistance to come up with a body fat percentage. The accuracy of these body fat measurements should be taken with a grain of salt though, as they can be inconsistent and innacurate at times.
Essential reading: Compare smart scales with our interactive tool
Consumer Reports tested six popular scales last year and came to the conclusion that while they were all good at measuring weight, none were particularly accurate when it came to measuring body fat. At least they were consistent, though, so the scales can be used to track relative gains and losses over time.
Generally, we can separate smart scales into two camps. The well known brands such as Fitbit, Nokia and Garmin, and the dozens and dozens of scales released by lesser known brands. These are generally cheaper,- but in many cases also less reliable. This article will be focusing on the more established brands.
Let’s cut to the chase right away. Scales produced by Nokia are our pick of the bunch. These are actually Withings scales, but have been under the Nokia brand since the acquisition last year.
Body+ measures weight and BMI, along with fat mass, muscle mass, water and bone mass. The scale has multi-user support and recognition, a free Health Mate app and syncs to the Cloud. It also has both iOS and Android compatibility.
This gadget simply does the job. Having one of these in the bathroom means you can make weighing yourself part of your morning ritual, allowing you to track your progress every day, at roughly the same time, in the same state of undress, with no hassle. It configures relatively effortlessly to your network, and then just goes about its work reliably and quietly enough.
The Patented Position Control Technology delivers highly-precise measurements accurate to .2 pounds. The fat % monitoring and other metrics can sometimes vary, but as mentioned this is the case with all such scales on the market.
If you love gadgets and find tracking your weight useful to help you diet or maintain a healthy weight, you won’t go wrong with the Body+.
Instead of the Body+, you can opt for the slightly more expensive Body Cardio scale. Apart from the design, the main difference is that Body Cardio has heart monitoring functions. It tracks your standing heart rate and an exclusive new measurement – your Pulse Wave Velocity.
With every beat the heart generates a wave that propagates along the arteries. The propagation speed of this wave is directly linked to the health of your arteries. Faster speeds indicate stiffer arteries, which increase the risk of developing hypertension or cardiovascular disease. Each weigh-in will provide a pulse wave velocity reading and assessment within the Health Mate app. Taking age into account, the app will then inform as to whether it is optimal or not, and provide tips to improve it. The Pulse Wave Velocity is an entirely new metric that you will not find with any other scales.
In terms of design, at only 0.7 inches with a solid aluminum base, Body Cardio has no feet to adjust, making it the thinnest, most stable scale available. Nokia says that Body Cardio works equally well on any surface, from a hard floor to a thick carpet. There is also no need to purchase batteries. Body Cardio lasts up to 12 months before needing to be recharged via the micro-USB cable.
Long overdue for an update, the original Aria scale was released back in April 2012. At the time, it was one of only a handful of connected scales on the market.
The Aria 2 has a fresh new design and a few other updates, but its core features remain largely the same. This means it will track weight, BMI, body fat percentage, with now the addition of lean mass. Just like its predecessor, it can recognise up to 8 users and you can set weight goals with a daily calorie plan, log food and other workouts.
Fitbit says its much easier to set up the new scale and you can do it over the smartphone using the app. It also offers more accurate readings.
If you’re looking to lose weight or just keep tabs on your current weight, this scale makes a good choice. Particularly if you own a Fitbit fitness tracker. You step on it, step off – done. Your weight is transferred to your Fitbit account so that it sits there along with all your other stats.
The Index Smart Scale is the first body composition monitor integrated directly into the Garmin ecosystem of products. In addition to weight, the scale measures your body mass index, body fat percentage, water percentage, muscle mass and bone mass.
Index has a sleek, modern design with a bright LCD display and extra large numbers for easy visibility. Like other smart scales on the market, it allows you to set up multiple profiles for different members of your family. In fact, you can set up to 16 users.
Our main gripe with this product is that you can only log one result per day day. If you want to weigh yourself more than once per day, the device will override the previous result with the new one. Which means, if you weigh yourself in the afternoon, any measurements from the morning are overwritten. For most people this should not be a problem as most experts recommend weighing yourself at a consistent time every day. It may, however, pose an issue, for example for athletes who want a morning baseline and also use the scale to evaluate post-workout hydration needs.
If you are the owner of other Garmin devices though, you might want to opt for this one due to integration with other Garmin products.
iHealth is one of the early entrants into the connected scales market. Their third generation scale measures nine aspects of your overall health including weight and body mass index, body fat, lean muscle, bone mass, water weight, daily calories and visceral fat rating. If you have a lot of people in your household, you’ll be happy to know – the scale recognises up to 10 users.
iHealth Core keeps a record of all your readings and provides detailed statistics on a wide range of vitals, which you can then monitor over time. The accompanying smartphone app lets you set goals, view readings, and share results. Measurements are stored on your secure iHealth account, presented in easy to read charts, and weight and BMI are graphed with past readings to view your progress at a glance.
On the minus side, set-up difficulties some users have experienced and occasional inconsistencies in measurements need to be taken into account when considering this purchase.
Although not as feature rich as some of the other connected scales, at less than $60 the Xiaomi scale sells at about half the price of leading brands.
The device tracks weight and BMI, and connects via Bluetooth to Xiaomi’s Mi Fit iOS and Android apps, so you can track your weight over time. It is capable of managing the weight of up to 16 people with its app, so its suitable for the whole family.
There are 161 LEDs which light up to show your weight. The overall body of the scale has a smooth design and round edges, and is protected by tempered glass panels. The display itself is embedded into the body.
The scale is receiving excellent reviews on Amazon, and is averaging an impressive 4.5 stars out of a maximum of 5. This is a great product, especially when you consider the price.
The Polar Balance scale features a large display, to ensure that the digits are easily readable, and a splash-proof glass design. The scale provides you with your weight and BMI, and can be used by up to 10 different people. The biggest selling point of this device though, is the software.
Once you have customised the settings, the app and web service will provide you with motivational guidance on how to reach your daily activity goal. The app works on the basis that 60% of the excess calories should be cut from your diet and 40% should be burned with activity.
Daily activities such as steps, distance and calories are recorded from one of Polar’s fitness trackers (if you own one), and the food intake you will need to record manually. A interesting aspect is the beautifully designed Weight Loss Speedometer. A graphic that visually shows how close you are to reaching your weight goals.
The Yunmai scale comes from a Chinese manufacturer and is another great budget option. Rather impressively, the scale measures 10 different body composition stats, including weight, BMI, BMR, hydration, bone mass, body age and more. It also comes with a well designed app that offers you guidance to help you reach your goals.
The first thing that strikes you when you see this scale is its size. It’s sleek, compact and does not take up a lot of space.
The app itsself is impressive and shows a wealth of data. You can chart your weight fluctuations on a daily, weekly, monthly and yearly basis. You will also get a composite ‘Health score’ each time you weigh yourself and a ‘Fitness Age’ score.
Also, we have to commend Yunmai. Rather than just providing you with raw data and letting you make sense of it, the company tries to show you what exactly you need to do to improve your health. After all, a thin person is not in every case healthier than an overweight person.
All in all, in terms of value for money, this may be one of the best budget smart scales on the market right now.
The Dutch company has recently joined the increasingly crowded market for wearables with its own health platform and ecosystem. Its health suite is the first in a larger product line of smart medical-grade devices to come.
The Philips smart scale looks very much like other devices from leading brands. It provides body composition analysis based on weight, BMI and body fat percentage and tracks your body composition over time in the Philips Health Suite health app.
It is clear that Philips is not targeting fitness enthusiasts with the suite of new devices. These are gadgets that are targeted for consumers who are at risk of chronic, lifestyle-related conditions such as high blood pressure or heart disease, and who may not have considered a health wearable in the past.
The second generation QardioBase retains the signature “floating” look of its predecessor but enhances it with a wider base for added stability. A new rechargeable battery has also been added that runs for up to a year between charges. The screen is brighter and crispier and there is a better haptic engine installed.
Qardio says it has enhanced the sensor system and introduced new and improved algorithms. This means your weight, body mass index and body composition (% muscle, fat, water, bone) measurements will be more accurate than before. There is also a unique Pregnancy Mode which helps expecting moms safely track their progress during this happy time and beyond.
All these improvements mean that the scale has made it into our top ten list this time around.
|Nokia Body+||Nokia Body Cardio||Fitbit Aria 2 Wi-FI Smart Scale||Garmin Index Smart Scale||iHealth Core HS6||Xiaomi Smart Scale||Polar Balance Scale||Yunmai Mini Smart Weighing Scale||Philips Body Analysis Scale||QardioBase 2|
|Size||327 x 327 x 23 mm||327 x 327 x 18 mm||31.2 x 3.3 x 31.2 cm||350 x 310 x 300 mm||350 × 350 × 28.5 mm||345 x 340 x 60 mm||335 x 328 mm||26 x 26 x 1.9 cm||321 x 321 x 25 mm||23 mm height, 340 mm width|
|Weight||2.0 kg||2.6 kg||1.94kg||2.8 kg||2.5 kg||2.7 Kg||2.2 kg||1.0 kg||1.98 kg||3.04 kg|
|Batteries||4 AAA batteries||Rechargeable li-ion battery (micro USB, included)||3 AA batteries||4 AA batteries||4 AAA batteries||4 AA batteries||3 AAA batteries||4 AAA batteries (included in the package)||4 AAA batteries||Rechargeable battery|
|Battery life||18 months||Up to 1 year||up to 1 year||Up to 9 months||Up to 3 months||Up to 9 months.||1 year|
|Connectivity||Wi-Fi, Bluetooth||Wi-Fi, Bluetooth||Wi-Fi||Wi-Fi, Bluetooth Smart (BLE), ANT+||Wi-Fi||Bluetooth||Wi-Fi, Bluetooth||Bluetooth||Bluetooth||Wi-Fi|
|Display||LED||LED||LCD backlit display||LCD display||LED||LED||LCD||LED||LCD display, white backlight||LED display|
|Colours||White, Black||White, Black.||Black, White||Black, White||White||White||White, Black||Blue, White, Pink||White, Black||Arctic White, Volcanic Black|
|Number of users||Up to 8||Up to 8||Up to 8||Up to 16||Up to 10||Up to 16||Up to 10||Up to 16||Up to 8||Up to 10|
|Body fat %||Yes||Yes||Yes||Yes||Yes||Yes||Yes||Yes||Yes|
|Other||Position Control.||Position Control, measures heart rate when you step on the scale, Pulse Wave Velocity, daily local weather forecast||Displays bright, extra large numbers against a black background, allowing easy visibility||Daily caloric intake, visceral fat rating||Position Control||Provides a personalized daily activity goal and eating plan.||- Visceral fat, protein, BMR, Body age|
- App syncs with Apple Health, MyFitnessPal, Google Fit and Fitbit
|View on||Withings, Amazon.||Withings, Amazon.||Amazon||Amazon, |
|Amazon||Amazon||Amazon, Yunmai||Amazon||Amazon | Qardio|
|Amazon US rating||4.2 out of 5 stars||4.0 out of 5 stars||3.8 out of 5 stars||3.1 out of 5 stars||4.0 out of 5 stars||3.7 out of 5 stars||4.7 out of 5 stars||4.4 out of 5 stars||4.3 out of 5 stars|