Casio WSD-F20A vs. Garmin Forerunner 235 vs. Diesel On Full Guard 2.5 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
WSD-F20A
Forerunner 235
On Full Guard 2.5
Forerunner 45
T-Rex
 CasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$299.99$325$199$140
Release20182017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day9 days4 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180454x454208 x 208360 x 360
Size1.32 inches1.23 inches1.39 inches1.04 inches1.3 inches
Touch
TypeLCDMIPLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSWear OSBuilt-inBuild-in
Apps
Music

All Wearables