ASUS ZenWatch 2 vs. Pebble Classic vs. Polar M400 vs. Garmin 645 Music vs. Amazfit GTR

 
ZenWatch 2
Classic
M400
645 Music
GTR
 ASUSZenWatch 2Remove Buy NowPebbleClassicRemove Buy NowPolarM400Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$99$200$450$199
Release20162013201420182019

Activity & Fitness

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

Battery

Durationn/a5-7 days8 hours to 30 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320168 x 144n/a240 x 240454 x 454
Size1.63 inches or 1.45 inch1.26 inchesn/a1.2 inches1.39 inches
Touch
TypeAMOLEDe-papern/aMIPAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM3 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid WearPebble OSn/aBuild-in
Apps
Music

All Wearables