Michael Kors Grayson vs. Jawbone UP24 vs. Polar A370 vs. Fitbit Versa 2 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Grayson
UP24
A370
Versa 2
Grayson
T-Rex
 Michael KorsGraysonRemove Buy NowJawboneUP24Remove Buy NowPolarA370Remove Buy NowFitbitVersa 2Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$350$130$179.95$199$350$140
Release201820132017201920182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours14 daysUp to 3 days5 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution453 x 454NA160 x 80300 x 300453x454360 x 360
Size1.39 inchesNA1.18 inches1.34 inches1.39 inches1.3 inches
TouchNA
TypeAMOLEDNATFT LCDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMSplash ResistantWR305 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearNABuild-inAndroid WearBuild-in
Apps
Music

All Wearables