Garmin Fenix 3 vs. Polar M400 vs. Apple Watch vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Michael Kors Grayson

 
Fenix 3
M400
Watch
Grayson
Charge 3
Grayson
 GarminFenix 3Remove Buy NowPolarM400Remove Buy NowAppleWatchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$500$200$349$350$150$350
Release201520142015201820182018

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks8 hours to 30 days18 hours24 hours7 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution218 x 218n/a340 x 272 or 390 x 312453 x 45466 x 18453x454
Size1.2 inchesn/a1.5 inches or 1.65 inches1.39 inches.721 inches1.39 inches
Touch
TypeChroma LEDn/aAMOLEDAMOLEDOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM3 ATMIPX71 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OSAndroid WearNAAndroid Wear
Apps
Music

All Wearables