Polar Loop 2 vs. Apple Watch Series 2 vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. HTC re Grip

 
Loop 2
Watch Series 2
Grayson
Watch Series 4
Grayson
re Grip
 PolarLoop 2Remove Buy NowAppleWatch Series 2Remove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$269$350$329$350$199
Release201520162018201820182020

Activity & Fitness

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

Battery

Duration8 days (without notifications)18 hours24 hoursNot Yet24 hours5 hours to 2.5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312453 x 454384 x 480453x454160 x 32
Sizen/a1.5 inches or 1.65 inches1.39 inches1.78 inches1.39 inches1.8 inches
Touch
TypeLEDAMOLEDAMOLEDMicroLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM5ATM1 ATMNot Yet1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSAndroid WearWatch OS 5Android WearNA
Apps
Music

All Wearables