Polar M400 vs. Fitbit Charge 2 vs. Misfit Speedo Shine 2 vs. Michael Kors Grayson vs. Samsung Live vs. Michael Kors Grayson

 
M400
Charge 2
Speedo Shine 2
Grayson
Live
Grayson
 PolarM400Remove Buy NowFitbitCharge 2Remove Buy NowMisfitSpeedo Shine 2Remove Buy NowMichael KorsGraysonRemove Buy NowSamsungLiveRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$150$80$350$200$350
Release201420162016201820142018

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days6 months24 hours1 Day24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a453 x 454320 x 320453x454
Sizen/an/an/a1.39 inches1.63 inches1.39 inches
Touchn/an/a
Typen/aOLEDn/aAMOLEDSuper AMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
VibrationNA
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMn/a5 ATM1 ATMIP671 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid WearAndroid WearAndroid Wear
Apps
Music

All Wearables