Garmin Forerunner 225 vs. Fitbit Ionic vs. Apple Watch vs. Garmin 645 Music vs. Apple Watch Series 4

 
Forerunner 225
Ionic
Watch
645 Music
Watch Series 4
 GarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$299$349$450$329
Release20152017201520182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks4+ days18 hours7 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180348x250340 x 272 or 390 x 312240 x 240384 x 480
Size1 inch1.421.5 inches or 1.65 inches1.2 inches1.78 inches
Touch
Typen/aOLEDAMOLEDMIPMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50mIPX75 ATMNot Yet

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aFitbit OSWatch OSWatch OS 5
Appsn/a
Musicn/a

All Wearables