Michael Kors Grayson vs. Fitbit Charge 3 vs. Fitbit Charge HR vs. Polar A370 vs. Michael Kors Grayson

 
Grayson
Charge 3
Charge HR
A370
Grayson
 Michael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowFitbitCharge HRRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$350$150$150$179.95$350
Release20182018201520172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours7 days5 daysUp to 3 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution453 x 45466 x 18NA160 x 80453x454
Size1.39 inches.721 inchesNA1.18 inches1.39 inches
TouchNA
TypeAMOLEDOLEDOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM5 ATM1 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNANAAndroid Wear
Apps
Music

All Wearables