Motorola Moto 360 (2nd Gen) vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Polar A370 vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
WSD-F20A
Alta HR
A370
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$399$150$179.95$140
Release20152018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1.5 days1 day7 daysUp to 3 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330320 x 320128 x 36160 x 80360 x 360
Size1.37 inches or 1.56 inches1.32 inches1.4 inches1.18 inches1.3 inches
Touch
TypeLCDLCDOLEDTFT LCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearWear OSBuild-in
Apps
Musicn/a

All Wearables