Casio WSD-F20A vs. Fitbit Flex vs. Fitbit Versa 2 vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
WSD-F20A
Flex
Versa 2
Inspire HR
T-Rex
 CasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowFitbitVersa 2Remove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$100$199$99$140
Release20182013201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day5 days5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320NA300 x 300139 x 60360 x 360
Size1.32 inchesNA1.34 inches1.4 inches1.3 inches
TouchNA
TypeLCDLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSNABuild-inFitbit OSBuild-in
Apps
Music

All Wearables