ASUS ZenWatch 2 vs. Polar M400 vs. Fitbit Alta vs. Huawei Watch 2 vs. Amazfit GTR

 
ZenWatch 2
M400
Alta
Watch 2
GTR
 ASUSZenWatch 2Remove Buy NowPolarM400Remove Buy NowFitbitAltaRemove Buy NowHuaweiWatch 2Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$200$130$350$199
Release20162014201620172019

Activity & Fitness

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

Battery

Durationn/a8 hours to 30 days5 days48 hours24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/an/a480 x 480454 x 454
Size1.63 inches or 1.45 inchn/an/a1.38 inches1.39 inches
Touchn/a
TypeAMOLEDn/aOLEDP-OLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATMn/aIP685 ATM

Notifications

Phone
Emailsn/an/a
Textsn/a

Software

Operating SystemAndroid Wearn/an/aAndroid Wear 2Build-in
Apps
Music

All Wearables