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

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

Basic Info

Suggested Price$120$350$100$329$350$199
Release201520182013201820182020

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours5 daysNot Yet24 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NA384 x 480453x454160 x 32
Sizen/a1.39 inchesNA1.78 inches1.39 inches1.8 inches
Touch
TypeLEDAMOLEDLEDMicroLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM2 ATMNot Yet1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAWatch OS 5Android WearNA
Apps
Music

All Wearables