Polar M400 vs. Garmin Forerunner 935 vs. Michael Kors Grayson vs. Garmin Instinct vs. Michael Kors Grayson vs. Garmin VivoActive 4

 
M400
Forerunner 935
Grayson
Instinct
Grayson
VivoActive 4
 PolarM400Remove Buy NowGarminForerunner 935Remove Buy NowMichael KorsGraysonRemove Buy NowGarminInstinctRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$200$500$350$300$350$349
Release201420172018201820182019

Activity & Fitness

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

Battery

Duration8 hours to 30 daysUp to 2 weeks24 hours14 days24 hours8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240453 x 454128 x 128453x454260 x 260
Sizen/a1.2 inches1.39 inches0.9 inches1.39 inches1.3ionches
Touch
Typen/aLCDAMOLEDOMOLEDAMOLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM1 ATM10 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid WearWear OS
Apps
Music

All Wearables