Fitbit Blaze vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Blaze
WSD-F20A
Grayson
Grayson
Vivosmart 4
T-Rex
 FitbitBlazeRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$399$350$350$130$140
Release201620182018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days1 day24 hours24 hours7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhonePartial
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320453 x 454453x45448 x 128360 x 360
Sizen/a1.32 inches1.39 inches1.39 inches0.74 inches1.3 inches
Touch
TypeLCDLCDAMOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM1 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearAndroid WearBuild-in
Apps
Music

All Wearables