Polar M400 vs. Asus ZenWatch vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Huawei Band 3 Pro vs. Apple Series 6

 
M400
ZenWatch
Grayson
Grayson
Band 3 Pro
Series 6
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowHuaweiBand 3 ProRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$150$350$350$70$399
Release201420142018201820182020

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA24 hours24 hours12 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320453 x 454453x454454 x 454384 x 480
Sizen/a1.63 inches1.39 inches1.39 inches1.39 inches40mm
Touch
Typen/aAMOLEDAMOLEDAMOLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance3 ATMIP551 ATM1 ATMIP68

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearAndroid WearAndroid WearAMAZFIT OSWatchOS 5
Apps
Music

All Wearables