Polar Loop 2 vs. Amazfit Pace vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Amazfit T-Rex

 
Loop 2
Pace
WSD-F20A
Alta HR
T-Rex
 PolarLoop 2Remove Buy NowAmazfitPaceRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$120$130$399$150$140
Release20152017201820172019

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 days1 day7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 300320 x 320128 x 36360 x 360
Sizen/a1.34 inches1.32 inches1.4 inches1.3 inches
Touch
TypeLEDTFT LCDLCDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryWear OSBuild-in
Apps
Music

All Wearables