Polar Loop 2 vs. LG Watch Sport vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Michael Kors Grayson vs. Amazfit GTR

 
Loop 2
Watch Sport
Grayson
Alta HR
Grayson
GTR
 PolarLoop 2Remove Buy NowLGWatch SportRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$120$349$350$150$350$199
Release201520162018201720182019

Activity & Fitness

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

Battery

Duration8 days (without notifications)1.45 days24 hours7 days24 hours24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a480 x 480453 x 454128 x 36453x454454 x 454
Sizen/a1.38 inches1.39 inches1.4 inches1.39 inches1.39 inches
Touch
TypeLEDP-OLEDAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP681 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Android WearAndroid WearBuild-in
Apps
Music

All Wearables