ASUS ZenWatch 2 vs. Apple Watch Series 2 vs. Fitbit Charge HR vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
ZenWatch 2
Watch Series 2
Charge HR
Forerunner 45
T-Rex
 ASUSZenWatch 2Remove Buy NowAppleWatch Series 2Remove Buy NowFitbitCharge HRRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$269$150$199$140
Release20162016201520192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a18 hours5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320340 x 272 or 390 x 312NA208 x 208360 x 360
Size1.63 inches or 1.45 inch1.5 inches or 1.65 inchesNA1.04 inches1.3 inches
TouchNA
TypeAMOLEDAMOLEDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearWatch OSNABuilt-inBuild-in
Apps
Music

All Wearables