Polar M600 vs. Fitbit Charge 2 vs. Polar M430 vs. Michael Kors Grayson vs. Fitbit Flex vs. Michael Kors Grayson

 
M600
Charge 2
M430
Grayson
Flex
Grayson
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowPolarM430Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$330$150$255$350$100$350
Release201620162017201820132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days30 hours24 hours5 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a128x128453 x 454NA453x454
Size1.3 inchesn/a1.4 inch1.39 inchesNA1.39 inches
Touchn/an/aNA
TypeTFTOLEDLCDAMOLEDLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/aWR301 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables