Garmin Forerunner 225 vs. Fitbit Ionic vs. Garmin 645 Music vs. Amazfit GTR vs. Skagen Falster 3

 
Forerunner 225
Ionic
645 Music
GTR
Falster 3
 GarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy NowSkagenFalster 3Remove Buy Now

Basic Info

Suggested Price$300$299$450$199$295
Release20152017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks4+ days7 days24 days1 day
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180348x250240 x 240454 x 454416 x 416
Size1 inch1.421.2 inches1.39 inches1.28 inches
Touch
Typen/aOLEDMIPAMOLEDOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATM3 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aFitbit OSBuild-inWear OS
Appsn/a
Musicn/a

All Wearables