Polar M430 vs. Amazfit Cor vs. Garmin 645 Music vs. Samsung Galaxy Watch vs. Amazfit T-Rex

 
M430
Cor
645 Music
Galaxy Watch
T-Rex
 PolarM430Remove Buy NowAmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowSamsungGalaxy WatchRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$255$79.99$450$330$140
Release20172018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours12 days7 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
CellularNA
GPS
NFC
Wi-Fi

Display

Color
Resolution128x12880 x 160240 x 240360 x 360360 x 360
Size1.4 inch1.23 inches1.2 inches1.2 inches or 1.3 inches1.3 inches
Touch
TypeLCDIPS LCDMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizen OSBuild-in
Apps
MusicSpotify

All Wearables