Casio WSD-F20A vs. Garmin Forerunner 235 vs. Fitbit Charge vs. Amazfit T-Rex vs. Apple SE

 
WSD-F20A
Forerunner 235
Charge
T-Rex
SE
 CasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowFitbitChargeRemove Buy NowAmazfitT-RexRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$399$299.99$130$140$279
Release20182017201420192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day9 days7-10 days20 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320215 x 180NA360 x 360384 x 480
Size1.32 inches1.23 inchesNA1.3 inches40mm
TouchNA
TypeLCDMIPOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNABuild-inWatchOS 5
Apps
Music

All Wearables