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

 
Forerunner 225
Alta
Watch
645 Music
Watch Series 4
 GarminForerunner 225Remove Buy NowFitbitAltaRemove Buy NowAppleWatchRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$300$130$349$450$329
Release20152016201520182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 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 180n/a340 x 272 or 390 x 312240 x 240384 x 480
Size1 inchn/a1.5 inches or 1.65 inches1.2 inches1.78 inches
Touchn/a
Typen/aOLEDAMOLEDMIPMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/aIPX75 ATMNot Yet

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/an/aWatch OSWatch OS 5
Appsn/a
Musicn/a

All Wearables