Polar M600 vs. Michael Kors Grayson vs. Fitbit Flex vs. Polar Loop vs. Michael Kors Grayson vs. Garmin VivoActive 4

 
M600
Grayson
Flex
Loop
Grayson
VivoActive 4
 PolarM600Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$330$350$100$100$350$349
Release201620182013201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days24 hours5 days5 days24 hours8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240453 x 454NANA453x454260 x 260
Size1.3 inches1.39 inchesNANA1.39 inches1.3ionches
Touchn/aNA
TypeTFTAMOLEDLEDLEDAMOLEDMIP

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX81 ATM1 ATM2 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid WearNANAAndroid WearWear OS
Apps
Music

All Wearables