Garmin Forerunner 225 vs. Asus ZenWatch vs. Garmin 645 Music vs. Fitbit Charge HR vs. Apple Watch Series 4

 
Forerunner 225
ZenWatch
645 Music
Charge HR
Watch Series 4
 GarminForerunner 225Remove Buy NowAsusZenWatchRemove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge HRRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$150$450$150$329
Release20152014201820152018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeksNA7 days5 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180320 x 320240 x 240NA384 x 480
Size1 inch1.63 inches1.2 inchesNA1.78 inches
TouchNA
Typen/aAMOLEDMIPOLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP555 ATM1 ATMNot Yet

Notifications

Phonen/a
Emailsn/aNA
Textsn/aNA

Software

Operating Systemn/aAndroid WearNAWatch OS 5
Appsn/a
Musicn/a

All Wearables