Polar M400 vs. Polar V800 vs. Garmin Vivoactive 3 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Fitbit Inspire 3

 
M400
V800
Vivoactive 3
Grayson
Grayson
Inspire 3
 PolarM400Remove Buy NowPolarV800Remove Buy NowGarminVivoactive 3Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$200$470$299$350$350$100
Release201420142017201820182022

Activity & Fitness

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

Battery

Duration8 hours to 30 days13 hours to 30 days7 days24 hours24 hours10 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240453 x 454453x45432x18
Sizen/an/a1.2 inches1.39 inches1.39 inches46 inches
Touch
Typen/an/aMIPAMOLEDAMOLEDAMOLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM3 ATM5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearAndroid Wear
Apps
Music

All Wearables