Garmin Fenix 3 vs. Garmin 645 Music vs. Sony SmartBand vs. Garmin Forerunner 45 vs. Amazfit GTR

 
Fenix 3
645 Music
SmartBand
Forerunner 45
GTR
 GarminFenix 3Remove Buy NowGarmin645 MusicRemove Buy NowSonySmartBandRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$500$450$100$199$199
Release20152018201420192019

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks7 days5 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution218 x 218240 x 240NA208 x 208454 x 454
Size1.2 inches1.2 inchesNA1.04 inches1.39 inches
TouchNA
TypeChroma LEDMIPNALCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM5 ATMIP585 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inBuild-in
Apps
Music

All Wearables