Michael Kors Grayson vs. Fitbit Alta HR vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Fitbit Inspire 3

 
Grayson
Alta HR
Watch Series 4
Grayson
T-Rex
Inspire 3
 Michael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$350$150$329$350$140$100
Release201820172018201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours7 daysNot Yet24 hours20 days10 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution453 x 454128 x 36384 x 480453x454360 x 36032x18
Size1.39 inches1.4 inches1.78 inches1.39 inches1.3 inches46 inches
Touch
TypeAMOLEDOLEDMicroLEDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMNot Yet1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearWatch OS 5Android WearBuild-in
Apps
Music

All Wearables