Polar M400 vs. Garmin Vivosmart HR vs. Michael Kors Grayson vs. Samsung Galaxy Watch vs. Michael Kors Grayson vs. Huawei Band 2

 
M400
Vivosmart HR
Grayson
Galaxy Watch
Grayson
Band 2
 PolarM400Remove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowSamsungGalaxy WatchRemove Buy NowMichael KorsGraysonRemove Buy NowHuaweiBand 2Remove Buy Now

Basic Info

Suggested Price$200$170$350$330$350$69.99
Release201420152018201820182017

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days24 hours7 days24 hours21 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
CellularNA
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68453 x 454360 x 360453x454128 x 32
Sizen/a1.08 inches1.39 inches1.2 inches or 1.3 inches1.39 inches0.91 inches
Touch
Typen/an/aAMOLEDAMOLEDAMOLEDPMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM1 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearTizen OSAndroid Wear
Apps
MusicSpotify

All Wearables