With so many different options, it is not easy to pick the perfect fitness tracker or smartwatch. After all, this is something that will be sitting on your wrist 24/7 for the foreseeable future.
The right wearable will be based on your individual needs; whether it’s step counting, sleep tracking or 24/7 heart rate tracking, there’s something for everyone. That said, you shouldn’t have to scour the internet for days and weeks to do research and filter down your choices.
Essential reading: Top fitness trackers and health gadgets
We are dedicated to helping consumers make sense of this fast growing market and stay up-to-date on the latest health and fitness tech industry news and product releases. This space is now awash with manufacturers each fighting for a slice of the wearable pie.
While some of these devices may seem pretty similar, a closer look reveals small but important differences. To that end, we have created a tool which allows you to pick any 10 fitness trackers, and compare them side-by-side to view features, technical specifications and more.
You can do the same for smartwatches, heart rate monitors, biometric headphones, smart scales and other connected wearables. We have nearly 1,000 gadgets in our database. The full range of options can be seen in our Compare Tool menu option.
|Apple Watch Series 4||Fitbit Alta HR||Fitbit Charge 3||Garmin Vivoactive 3|
|Size||40 mm (band fits 130-200mm wrists)|
44 mm (band fits 140-210mm wrists)
|Device Dimensions: 15 mm x 10 mm x 35 mm (W x D x L)|
(Sizes depend on type of band)
|Device Dimensions: 18.3 mm x 11.8 mm x 38 mm (W x D x L)|
One size (small and large bands included)
|43.4 x 43.4 x 11.7 mm|
|Material||Sapphire crystal and ceramic back.||Wristband is made of a flexible, durable elastomer. The tracker is made with surgical-grade stainless steel, and the buckle is made with aluminum.||Built of more lightweight material including an aerospace grade aluminum case and Corning Gorilla Glass 3 display. The housing and buckle are made of anodized aluminum.||Case material: fiber-reinforced polymer and stainless steel|
Lens material: Corning® Gorilla® Glass 3
Bezel material: stainless steel
|Battery life||18+ hours||up to 7 days||up to 7 days||GPS mode: Up to 13 hours|
Smartwatch mode: Up to 7 days
|Water-resistance||5 ATM (50 metres)||Sweat, rain and splash proof||5 ATM||5 ATM|
|Weight||Case weight: 30.1g (for 40mm version); 36.7g (for 44mm version)||15 grams||29 grams||43 g|
|Sensor||Ambient light, optical heart rate sensor, Electrical heart sensor, improved accelerometer up to 32 g‑forces, improved gyroscope, GPS (GLONASS, Galileo, and QZSS), barometric altimeter, ambient light sensor||3-axis accelerometer, Vibration motor, optical heart rate sensor||Optical heart rate tracker, 3-axis accelerometer, altimeter, SpO2, vibration motor||GPS, barometric altimeter, compass, accelerometer, thermometer, heart rate|
|Display||LTPO OLED Retina display with Force Touch (1000 nits), Ion-X strengthened glass||B&W OLED touchscreen||OLED full touchscreen, TFT||sunlight-visible, transflective memory-in-pixel (MIP), 240 x 240 pixels|
|Screen size||44mm: 977 sq mm display area (368 x 448 pixel resolution)|
40mm: 759 sq mm display area (324 x 394 pixel resolution)
|1.4-inch, 128 x 36 pixel resolution||38 x 18.3mm||1.2" (30.4mm) diameter|
|Colors||A number of aluminum finishes anodized in silver, gold and space gray. You can also pick up the device in gold stainless steel with a matching Milanese band, joining the silver and space black stainless steel models.||Black, Blue/Gray, Coral, Fuchsia||Multiple||Black, White|
PROCESSOR: S4 with 64-bit dual-core processor, W3 Apple wireless chip
MEMORY: 512 RAM, 16GB storage
CONNECTIVITY: Bluetooth 4.0, NFC, WiFi, LTE and UMTS cellular radio
|NFC (Special edition)|
Connectivity: Bluetooth, WiFi
Charge 3 stores your stats and data for 7 days in between the times you sync your tracker.
|PLATFORM: Home Grown OS|
MEMORY: 7 timed activities, 14 days of activity tracking data
CONNECTIVITY: WiFi, Bluetooth
|Stress & recovery||Yes|
|Galvanic skin response|
|GPS||Yes (GPS,GLONASS, Galileo, and QZSS)||Connected GPS||Yes|
|Running features||Watch displays up to 5 metrics during your run (time, distance, current pace and average pace, heart rate, active calories or total calories).||Preloaded running profiles, GPS based distance/time/pace, run workouts, foot pod capable|
|Swimming features||Pool swim and open water swim. At the end of a swim, the watch displays the time of day the activity took place, dominant stroke used (auto-detection is used), distance, workout time, pool length, laps completed, average pace, average heart rate, and both active and total calories burned, as well as the weather at your location.||Preloaded swim profiles; Pool swim metrics (lengths, distance, pace, stroke count/rate, calories); Stroke type detection (freestyle, backstroke, breaststroke, butterfly); Pool swim workouts |
Swim efficiency (SWOLF)
|Other||- ECG monitor|
- irregular heart rate detection
- low or high heart rate alerts
- fall detection
|Clock, auto sleep detection, silent wake alarm, auto exercise recognition.||Guided breathing, Female Health Tracking||- gym workout tracking|
- music control, find my phone, etc..
- Built in apps for running, golfing, cycling, swimming, snowboarding/skiing, paddle board, rowing, cardio, walking, strength training, rep counting, yoga, eliptical, stair-stepper and more.
|On-board music storage||Yes (Stream Apple Music direct to watch)|
|Connected pay||Yes||Yes (special edition)||Yes|
|Affiliate link*||Amazon||Amazon | Fitbit||Amazon | Fitbit||Amazon|
So, if you want something discreet and simple, you’ll probably opt for the Alta HR. For a more feature-packed fitness tracking experience, the Charge 3 or Vivoactive 3 might fit the bill. Apple Watch Series 4 is the clear winner in the smartwatch category. None of these look quite right? No problem – there are hundreds more to choose from.
The interactive tool can be found on this page.
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