Misfit Ray vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Polar A370 vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Ray
Grayson
Charge 3
A370
Grayson
Vivosmart 4
 MisfitRayRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$100$350$150$179.95$350$130
Release201620182018201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months24 hours7 daysUp to 3 days24 hours7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 45466 x 18160 x 80453x45448 x 128
Sizen/a1.39 inches.721 inches1.18 inches1.39 inches0.74 inches
Touchn/a
TypeLEDAMOLEDOLEDTFT LCDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATMWR301 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid Wear
Apps
Music

All Wearables