Motorola Moto 360 (2nd Gen) vs. Polar M430 vs. Fitbit Alta HR vs. Polar A370 vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
M430
Alta HR
A370
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM430Remove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$255$150$179.95$140
Release20152017201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1.5 days30 hours7 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 330128x128128 x 36160 x 80360 x 360
Size1.37 inches or 1.56 inches1.4 inch1.4 inches1.18 inches1.3 inches
Touch
TypeLCDLCDOLEDTFT LCDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67WR30WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearBuild-in
Apps
Musicn/a

All Wearables