Polar M400 vs. Microsoft Band 2 vs. Basis Peak vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
M400
Band 2
Peak
Grayson
Grayson
Vivosmart 4
 PolarM400Remove Buy NowMicrosoftBand 2Remove Buy NowBasisPeakRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$250$200$350$350$130
Release201420152014201820182018

Activity & Fitness

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

Battery

Duration8 hours to 30 days48 hours (without GPS)4 days24 hours24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128168 x 144453 x 454453x45448 x 128
Sizen/a1.36 inches1.25 inches1.39 inches1.39 inches0.74 inches
Touch
Typen/aCapacitative TFTLCDAMOLEDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX75 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAAndroid WearAndroid Wear
Apps
Music

All Wearables