Polar M400 vs. Apple Watch vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Apple SE (2022) vs. Fitbit Inspire 3

 
M400
Watch
Grayson
Grayson
SE (2022)
Inspire 3
 PolarM400Remove Buy NowAppleWatchRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAppleSE (2022)Remove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$200$349$350$350$249$100
Release201420152018201820222022

Activity & Fitness

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

Battery

Duration8 hours to 30 days18 hours24 hours24 hoursNot yet10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color368 x 448 pixels
Resolutionn/a340 x 272 or 390 x 312453 x 454453x45440mm32x18
Sizen/a1.5 inches or 1.65 inches1.39 inches1.39 inches46 inches
TouchLTPO OLED Retina
Typen/aAMOLEDAMOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter5 ATM
Ultraviolet Sensor
Water Resistance3 ATMIPX71 ATM1 ATM5 ATM

Notifications

Phone
EmailsWatchOS 8.1
Texts

Software

Operating Systemn/aWatch OSAndroid WearAndroid Wear
Apps
Music

All Wearables