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

 
Fenix 3
Vivosmart
Grayson
Watch Series 4
Grayson
T-Rex
 GarminFenix 3Remove Buy NowGarminVivosmartRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$500$170$350$329$350$140
Release201520142018201820182019

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks7 days24 hoursNot Yet24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218128 x 16453 x 454384 x 480453x454360 x 360
Size1.2 inches1.41 inches1.39 inches1.78 inches1.39 inches1.3 inches
Touch
TypeChroma LEDOLEDAMOLEDMicroLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearWatch OS 5Android WearBuild-in
Apps
Music

All Wearables