Garmin Fenix 3 vs. Samsung Gear S3 vs. Garmin 645 Music vs. Fitbit Flex vs. Amazfit GTR

 
Fenix 3
Gear S3
645 Music
Flex
GTR
 GarminFenix 3Remove Buy NowSamsungGear S3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$500$350$450$100$199
Release20152016201820132019

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks4 days7 days5 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPS
NFCn/a
Wi-Fi

Display

Color
Resolution218 x 218360 x 360240 x 240NA454 x 454
Size1.2 inches1.3 inches1.2 inchesNA1.39 inches
TouchNA
TypeChroma LEDFullcolor AODMIPLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATMIP685 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenNABuild-in
Apps
Music

All Wearables