Polar M600 vs. Diesel On Full Guard vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Michael Kors Grayson vs. Fitbit Inspire HR

 
M600
On Full Guard
Grayson
Charge 3
Grayson
Inspire HR
 PolarM600Remove Buy NowDieselOn Full GuardRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$330$325$350$150$350$99
Release201620172018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days1 day24 hours7 days24 hours5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution240 x 240454 x 454453 x 45466 x 18453x454139 x 60
Size1.3 inches1.4 inches1.39 inches.721 inches1.39 inches1.4 inches
Touchn/a
TypeTFTOMOLEDAMOLEDOLEDAMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP671 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wear 2.0Android WearNAAndroid WearFitbit OS
Apps
Music

All Wearables