Garmin Fenix 3 vs. Garmin Vivoactive vs. Polar M400 vs. Fitbit Ionic vs. Michael Kors Grayson vs. Michael Kors Grayson

 
Fenix 3
Vivoactive
M400
Ionic
Grayson
Grayson
 GarminFenix 3Remove Buy NowGarminVivoactiveRemove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$500$250$200$299$350$350
Release201520152014201720182018

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks14 hours to 11 days8 hours to 30 days4+ days24 hours24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218205 x 148n/a348x250453 x 454453x454
Size1.2 inches1.38 inchesn/a1.421.39 inches1.39 inches
Touch
TypeChroma LEDLCDn/aOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM5 ATM3 ATM50m1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aFitbit OSAndroid WearAndroid Wear
Apps
Music

All Wearables