Olio Model One vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Model One
WSD-F20A
Grayson
Grayson
Vivosmart 4
T-Rex
 OlioModel OneRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$595$399$350$350$130$140
Release201520182018201820182019

Activity & Fitness

Caloriesn/a
Cycling (Bicycling)n/a
Distancen/a
Heartn/a
Oxygenn/a
Sleepn/a
Stepsn/a
Swimn/a

Battery

Duration2 days1 day24 hours24 hours7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPSn/a
NFCn/a
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
Typen/aLCDAMOLEDAMOLEDOLEDAMOLED

Functions

Audio Speakern/a
Clock
Phonen/a
Vibrationn/a
Voice

Hardware

Accelerometern/a
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM1 ATM5 ATM5 ATM

Notifications

Phonen/a
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearAndroid WearBuild-in
Appsn/a
Music

All Wearables