Asus ZenWatch vs. Fitbit Alta HR vs. Polar A370 vs. Samsung Gear Fit2 Pro vs. Amazfit T-Rex

 
ZenWatch
Alta HR
A370
Gear Fit2 Pro
T-Rex
 AsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowSamsungGear Fit2 ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$150$179.95$199.99$140
Release20142017201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationNA7 daysUp to 3 days2 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320128 x 36160 x 80216 x 432360 x 360
Size1.63 inches1.4 inches1.18 inches1.5 inches1.3 inches
Touch
TypeAMOLEDOLEDTFT LCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP55WR305 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid WearTizen OSBuild-in
Apps
Music

All Wearables