Polar M400 vs. Misfit Ray vs. Apple Watch Series 2 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Apple Watch 7

 
M400
Ray
Watch Series 2
Grayson
Grayson
Watch 7
 PolarM400Remove Buy NowMisfitRayRemove Buy NowAppleWatch Series 2Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$100$269$350$350$429
Release201420162016201820182021

Activity & Fitness

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

Battery

Duration8 hours to 30 days6 months18 hours24 hours24 hours18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a340 x 272 or 390 x 312453 x 454453x454396 x 484
Sizen/an/a1.5 inches or 1.65 inches1.39 inches1.39 inches1.9 inches
Touchn/a
Typen/aLEDAMOLEDAMOLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5ATM1 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatch OSAndroid WearAndroid WearWatchOS 8
Apps
Music

All Wearables