Garmin Fenix 3 vs. Garmin Forerunner 735XT vs. Garmin 645 Music vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Michael Kors Grayson

 
Fenix 3
Forerunner 735XT
645 Music
Grayson
Charge HR
Grayson
 GarminFenix 3Remove Buy NowGarminForerunner 735XTRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$500$450$450$350$150$350
Release201520162018201820152018

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks14 hours to 11 days7 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218215 x 180240 x 240453 x 454NA453x454
Size1.2 inches1.23 inches1.2 inches1.39 inchesNA1.39 inches
Touchn/aNA
TypeChroma LEDn/aMIPAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables