Casio WSD-F20A vs. Garmin Forerunner 235 vs. Michael Kors Grayson vs. Garmin Vivosmart 3 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
WSD-F20A
Forerunner 235
Grayson
Vivosmart 3
Grayson
T-Rex
 CasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 3Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$299.99$350$139.99$350$140
Release201820172018201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day9 days24 hours5 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180453 x 45464 x 128453x454360 x 360
Size1.32 inches1.23 inches1.39 inchesNA1.39 inches1.3 inches
Touch
TypeLCDMIPAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSAndroid WearAndroid WearBuild-in
Apps
Music

All Wearables