Polar M400 vs. Garmin Fenix 5s vs. Michael Kors Grayson vs. Polar A370 vs. Apple Watch Series 5 vs. Michael Kors Grayson

 
M400
Fenix 5s
Grayson
A370
Watch Series 5
Grayson
 PolarM400Remove Buy NowGarminFenix 5sRemove Buy NowMichael KorsGraysonRemove Buy NowPolarA370Remove Buy NowAppleWatch Series 5Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$200$599.99$350$179.95$329$350
Release201420172018201720192018

Activity & Fitness

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

Battery

Duration8 hours to 30 daysUp to 9 days24 hoursUp to 3 daysNot Yet24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a218x 218453 x 454160 x 80384 x 480453x454
Sizen/a1.1 inches1.39 inches1.18 inches1.78 Inches1.39 inches
Touch
Typen/anaAMOLEDTFT LCDMicroLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM10ATM1 ATMWR30Not Yet1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatchOS 5Android Wear
Apps
Music

All Wearables