Garmin Fenix 3 vs. Polar M600 vs. Garmin 645 Music vs. Sony SmartBand vs. Amazfit GTR

 
Fenix 3
M600
645 Music
SmartBand
GTR
 GarminFenix 3Remove Buy NowPolarM600Remove Buy NowGarmin645 MusicRemove Buy NowSonySmartBandRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$500$330$450$100$199
Release20152016201820142019

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks2 days7 days5 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution218 x 218240 x 240240 x 240NA454 x 454
Size1.2 inches1.3 inches1.2 inchesNA1.39 inches
Touchn/aNA
TypeChroma LEDTFTMIPNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATMIPX85 ATMIP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNABuild-in
Apps
Music

All Wearables