Polar Loop 2 vs. LG Watch Sport vs. Polar M430 vs. Garmin 645 Music vs. Amazfit GTR

 
Loop 2
Watch Sport
M430
645 Music
GTR
 PolarLoop 2Remove Buy NowLGWatch SportRemove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$120$349$255$450$199
Release20152016201720182019

Activity & Fitness

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

Battery

Duration8 days (without notifications)1.45 days30 hours7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 480128x128240 x 240454 x 454
Sizen/a1.38 inches1.4 inch1.2 inches1.39 inches
Touch
TypeLEDP-OLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP68WR305 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Build-in
Apps
Music

All Wearables