Polar M400 vs. TomTom Adventurer vs. Michael Kors Grayson vs. Apple Watch Series 5 vs. Michael Kors Grayson vs. Apple Watch 7

 
M400
Adventurer
Grayson
Watch Series 5
Grayson
Watch 7
 PolarM400Remove Buy NowTomTomAdventurerRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 5Remove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$200$350$350$329$350$429
Release201420162018201920182021

Activity & Fitness

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

Battery

Duration8 hours to 30 daysn/a24 hoursNot Yet24 hours18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a453 x 454384 x 480453x454396 x 484
Sizen/an/a1.39 inches1.78 Inches1.39 inches1.9 inches
Touch
Typen/an/aAMOLEDMicroLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts onlyBluetooth
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM1 ATMNot Yet1 ATMwater resistant but not waterproof

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearWatchOS 5Android WearWatchOS 8
Apps
Music

All Wearables