ASUS ZenWatch 2 vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Fitbit Charge HR vs. Amazfit T-Rex

 
ZenWatch 2
Watch Series 2
ZenWatch 3
Charge HR
T-Rex
 ASUSZenWatch 2Remove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitCharge HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$269$229$150$140
Release20162016201720152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a18 hours48 hours5 days20 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320340 x 272 or 390 x 312400 x 400NA360 x 360
Size1.63 inches or 1.45 inch1.5 inches or 1.65 inches1.39 inchesNA1.3 inches
TouchNA
TypeAMOLEDAMOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWatch OSAndroid Wear 2NABuild-in
Apps
Music

All Wearables