Casio WSD-F20A vs. Fossil Explorist vs. Fitbit Flex vs. Huawei Band 3 Pro vs. Amazfit T-Rex

 
WSD-F20A
Explorist
Flex
Band 3 Pro
T-Rex
 CasioWSD-F20ARemove Buy NowFossilExploristRemove Buy NowFitbitFlexRemove Buy NowHuaweiBand 3 ProRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$255$100$70$140
Release20182018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day24 hours5 days12 days20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320454 x454NA454 x 454360 x 360
Size1.32 inches1.4 inchesNA1.39 inches1.3 inches
TouchNA
TypeLCDAMOLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP671 ATMIP685 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSWear OSNAAMAZFIT OSBuild-in
Apps
Music

All Wearables