Huawei Watch vs. Polar M400 vs. Asus ZenWatch vs. Garmin 645 Music vs. Amazfit T-Rex

 
Watch
M400
ZenWatch
645 Music
T-Rex
 HuaweiWatchRemove Buy NowPolarM400Remove Buy NowAsusZenWatchRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$349$200$150$450$140
Release20152014201420182019

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 daysNA7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution400 x 400n/a320 x 320240 x 240360 x 360
Size1.4 inchesn/a1.63 inches1.2 inches1.3 inches
Touch
TypeAMOLEDn/aAMOLEDMIPAMOLED

Functions

Audio Speakern/aAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a3 ATMIP555 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid Wearn/aAndroid WearBuild-in
Apps
Musicn/a

All Wearables