Garmin Fenix 3 vs. Casio WSD-F20A vs. Polar Loop vs. Amazfit T-Rex

 
Fenix 3
WSD-F20A
Loop
T-Rex
 GarminFenix 3Remove Buy NowCasioWSD-F20ARemove Buy NowPolarLoopRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$500$399$100$140
Release2015201820132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks1 day5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218320 x 320NA360 x 360
Size1.2 inches1.32 inchesNA1.3 inches
Touch
TypeChroma LEDLCDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM5 ATM2 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNABuild-in
Apps
Music

All Wearables