ASUS ZenWatch 2 vs. Apple Watch vs. Fitbit Alta HR vs. Amazfit GTS vs. Amazfit T-Rex

 
ZenWatch 2
Watch
Alta HR
GTS
T-Rex
 ASUSZenWatch 2Remove Buy NowAppleWatchRemove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$349$150$150$140
Release20162015201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a18 hours7 days14 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320340 x 272 or 390 x 312128 x 36348 x 442360 x 360
Size1.63 inches or 1.45 inch1.5 inches or 1.65 inches1.4 inches1.65 inches1.3 inches
Touch
TypeAMOLEDAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67IPX75 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWatch OSWear OSBuild-in
Apps
Music

All Wearables