Polar M400 vs. Garmin Fenix 5s Plus vs. Michael Kors Grayson vs. Garmin Forerunner 45 vs. Michael Kors Grayson vs. Apple SE

 
M400
Fenix 5s Plus
Grayson
Forerunner 45
Grayson
SE
 PolarM400Remove Buy NowGarminFenix 5s PlusRemove Buy NowMichael KorsGraysonRemove Buy NowGarminForerunner 45Remove Buy NowMichael KorsGraysonRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$200$799$350$199$350$279
Release201420182018201920182020

Activity & Fitness

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

Battery

Duration8 hours to 30 days7 days24 hours7 days24 hours18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240453 x 454208 x 208453x454384 x 480
Sizen/a1.2 inches1.39 inches1.04 inches1.39 inches40mm
Touch
Typen/aMIPAMOLEDLCDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance3 ATM10 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSAndroid WearBuilt-inAndroid WearWatchOS 5
Apps
Music

All Wearables