Polar M400 vs. Samsung Gear S2 vs. Garmin Fenix 5x Plus vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson

 
M400
Gear S2
Fenix 5x Plus
Grayson
Flex
Grayson
 PolarM400Remove Buy NowSamsungGear S2Remove Buy NowGarminFenix 5x PlusRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$300$850$350$100$350
Release201420152018201820132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days2-3 days20 days24 hours5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolutionn/a360 x 360240 x 240453 x 454NA453x454
Sizen/a1.2 inches1.2 inches1.39 inchesNA1.39 inches
TouchNA
Typen/aSuper AMOLEDMIPAMOLEDLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP6810 ATM1 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aTizenWear OSAndroid WearNAAndroid Wear
Apps
Music

All Wearables