Garmin Fenix 3 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson vs. HTC re Grip

 
Fenix 3
645 Music
Grayson
Flex
Grayson
re Grip
 GarminFenix 3Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$500$450$350$100$350$199
Release201520182018201320182020

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks7 days24 hours5 days24 hours5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218240 x 240453 x 454NA453x454160 x 32
Size1.2 inches1.2 inches1.39 inchesNA1.39 inches1.8 inches
TouchNA
TypeChroma LEDMIPAMOLEDLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM5 ATM1 ATM1 ATM1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid WearNA
Apps
Music

All Wearables