Polar M400 vs. Asus ZenWatch vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Jawbone UP3 vs. Michael Kors Grayson

 
M400
ZenWatch
Grayson
Charge 3
UP3
Grayson
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowJawboneUP3Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$150$350$150$180$350
Release201420142018201820132018

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA24 hours7 days7 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANot yetNA

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a320 x 320453 x 45466 x 18NA453x454
Sizen/a1.63 inches1.39 inches.721 inchesNA1.39 inches
TouchNA
Typen/aAMOLEDAMOLEDOLEDNAAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP551 ATM5 ATMNA1 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearAndroid WearNANAAndroid Wear
Apps
MusicNA

All Wearables