Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Misfit Speedo Shine vs. Apple Watch Series 4 vs. Michael Kors Grayson

 
Loop 2
Grayson
Alta HR
Speedo Shine
Watch Series 4
Grayson
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMisfitSpeedo ShineRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$350$150$80$329$350
Release201520182017201520182018

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours7 days6 monthsNot Yet24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolutionn/a453 x 454128 x 36NA384 x 480453x454
Sizen/a1.39 inches1.4 inchesNA1.78 inches1.39 inches
TouchNA
TypeLEDAMOLEDOLEDNAMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM5 ATMNot Yet1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAWatch OS 5Android Wear
Apps
Music

All Wearables