Fitbit Charge 2 vs. Amazfit Cor vs. Casio WSD-F20A vs. Amazfit GTR vs. Amazfit T-Rex

 
Charge 2
Cor
WSD-F20A
GTR
T-Rex
 FitbitCharge 2Remove Buy NowAmazfitCorRemove Buy NowCasioWSD-F20ARemove Buy NowAmazfitGTRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$79.99$399$199$140
Release20162018201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days1 day24 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a80 x 160320 x 320454 x 454360 x 360
Sizen/a1.23 inches1.32 inches1.39 inches1.3 inches
Touchn/a
TypeOLEDIPS LCDLCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuild-inBuild-in
Apps
Music

All Wearables