Casio WSD-F20A vs. Fitbit Versa vs. Fitbit Charge vs. Amazfit GTS vs. Amazfit T-Rex

 
WSD-F20A
Versa
Charge
GTS
T-Rex
 CasioWSD-F20ARemove Buy NowFitbitVersaRemove Buy NowFitbitChargeRemove Buy NowAmazfitGTSRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$199.99$130$150$140
Release20182018201420192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day4 days7-10 days14 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320300 x300NA348 x 442360 x 360
Size1.32 inches1.34 inchesNA1.65 inches1.3 inches
TouchNA
TypeLCDOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNAWear OSBuild-in
Apps
Music

All Wearables