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

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

Basic Info

Suggested Price$500$350$329$350$99$140
Release201520182018201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks24 hoursNot Yet24 hours5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218453 x 454384 x 480453x454139 x 60360 x 360
Size1.2 inches1.39 inches1.78 inches1.39 inches1.4 inches1.3 inches
Touch
TypeChroma LEDAMOLEDMicroLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM1 ATMNot Yet1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatch OS 5Android WearFitbit OSBuild-in
Apps
Music

All Wearables