ASUS ZenWatch 2 vs. Polar Loop 2 vs. Asus ZenWatch vs. Fitbit Charge 3 vs. Amazfit T-Rex

 
ZenWatch 2
Loop 2
ZenWatch
Charge 3
T-Rex
 ASUSZenWatch 2Remove Buy NowPolarLoop 2Remove Buy NowAsusZenWatchRemove Buy NowFitbitCharge 3Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$120$150$150$140
Release20162015201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a8 days (without notifications)NA7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/aNA
Windowsn/an/aNANot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution320 x 320n/a320 x 32066 x 18360 x 360
Size1.63 inches or 1.45 inchn/a1.63 inches.721 inches1.3 inches
Touch
TypeAMOLEDLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP672 ATMIP555 ATM5 ATM

Notifications

Phone
Emailsn/aNA
Textsn/aNA

Software

Operating SystemAndroid Wearn/aAndroid WearNABuild-in
Apps
Music

All Wearables