Polar Loop 2 vs. Michael Kors Grayson vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Garmin VivoActive 4 vs. Apple Watch 7

 
Loop 2
Grayson
Forerunner 45
Grayson
VivoActive 4
Watch 7
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivoActive 4Remove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$120$350$199$350$349$429
Release201520182019201820192021

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours7 days24 hours8 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454208 x 208453x454260 x 260396 x 484
Sizen/a1.39 inches1.04 inches1.39 inches1.3ionches1.9 inches
Touch
TypeLEDAMOLEDLCDAMOLEDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM5 ATM1 ATM5 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearBuilt-inAndroid WearWear OSWatchOS 8
Apps
Music

All Wearables