ASUS ZenWatch 3 vs. Asus ZenWatch vs. Fitbit Alta HR vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
ZenWatch 3
ZenWatch
Alta HR
Charge 3
T-Rex
 ASUSZenWatch 3Remove Buy NowAsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$229$150$150$150$140
Release20172014201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration48 hoursNA7 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNANot yet

Connectivity

BluetoothYes
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution400 x 400320 x 320128 x 3666 x 18360 x 360
Size1.39 inches1.63 inches1.4 inches.721 inches1.3 inches
Touch
TypeAMOLEDAMOLEDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP555 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid Wear 2Android WearNABuild-in
Apps
Music

All Wearables