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

 
Vivosmart
Vivosmart HR
Grayson
Watch Series 4
Grayson
T-Rex
 GarminVivosmartRemove Buy NowGarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$170$350$329$350$140
Release201420152018201820182019

Activity & Fitness

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

Battery

Duration7 days5 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
Resolution128 x 16160 x 68453 x 454384 x 480453x454360 x 360
Size1.41 inches1.08 inches1.39 inches1.78 inches1.39 inches1.3 inches
Touch
TypeOLEDn/aAMOLEDMicroLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATMNot Yet1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

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

All Wearables