Garmin Forerunner 225 vs. Fitbit Ionic vs. Amazfit Stratos vs. Garmin 645 Music vs. Apple Watch 8

 
Forerunner 225
Ionic
Stratos
645 Music
Watch 8
 GarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$300$299$199$450$499
Release20152017201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks4+ days5 days7 days18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180348x250320 x 300240 x 240340 x 272 or 390 x 312
Size1 inch1.421.34 inches1.2 inches1.5 inches or 1.65 inches
Touch
Typen/aOLEDOLEDMIPAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aFitbit OSProprietaryWatchOS 9
Appsn/a
Musicn/a

All Wearables