Garmin Forerunner 225 vs. Fitbit Charge 2 vs. Garmin 645 Music vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson

 
Forerunner 225
Charge 2
645 Music
Grayson
Watch Series 4
Grayson
 GarminForerunner 225Remove Buy NowFitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$300$150$450$350$329$350
Release201520162018201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days7 days24 hoursNot Yet24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a240 x 240453 x 454384 x 480453x454
Size1 inchn/a1.2 inches1.39 inches1.78 inches1.39 inches
Touchn/a
Typen/aOLEDMIPAMOLEDMicroLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5 ATM1 ATMNot Yet1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid WearWatch OS 5Android Wear
Appsn/a
Musicn/a

All Wearables