Polar M600 vs. Apple Watch Series 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson vs. Apple Watch 7

 
M600
Watch Series 2
Grayson
Flex
Grayson
Watch 7
 PolarM600Remove Buy NowAppleWatch Series 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$330$269$350$100$350$429
Release201620162018201320182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days18 hours24 hours5 days24 hours18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240340 x 272 or 390 x 312453 x 454NA453x454396 x 484
Size1.3 inches1.5 inches or 1.65 inches1.39 inchesNA1.39 inches1.9 inches
Touchn/aNA
TypeTFTAMOLEDAMOLEDLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85ATM1 ATM1 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearWatch OSAndroid WearNAAndroid WearWatchOS 8
Apps
Music

All Wearables