Polar Loop 2 vs. Acer Liquid Leap vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. Garmin Vivosmart 4

 
Loop 2
Liquid Leap
Grayson
Watch Series 4
Grayson
Vivosmart 4
 PolarLoop 2Remove Buy NowAcerLiquid LeapRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$120$90$350$329$350$130
Release201520152018201820182018

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 to 7 days24 hoursNot Yet24 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 32453 x 454384 x 480453x45448 x 128
Sizen/a1 inch1.39 inches1.78 inches1.39 inches0.74 inches
Touch
TypeLEDOLEDAMOLEDMicroLEDAMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIPX41 ATMNot Yet1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatch OS 5Android Wear
Apps
Music

All Wearables