Polar Loop 2 vs. LG Watch Sport vs. Garmin 645 Music vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Michael Kors Grayson

 
Loop 2
Watch Sport
645 Music
Grayson
Alta HR
Grayson
 PolarLoop 2Remove Buy NowLGWatch SportRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$349$450$350$150$350
Release201520162018201820172018

Activity & Fitness

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

Battery

Duration8 days (without notifications)1.45 days7 days24 hours7 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 480240 x 240453 x 454128 x 36453x454
Sizen/a1.38 inches1.2 inches1.39 inches1.4 inches1.39 inches
Touch
TypeLEDP-OLEDMIPAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP685 ATM1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Android WearAndroid Wear
Apps
Music

All Wearables