Garmin Forerunner 225 vs. Polar M400 vs. Fitbit Ionic vs. Garmin Forerunner 45 vs. Skagen Falster 2

 
Forerunner 225
M400
Ionic
Forerunner 45
Falster 2
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 45Remove Buy NowSkagenFalster 2Remove Buy Now

Basic Info

Suggested Price$300$200$299$199$199
Release20152014201720192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks8 hours to 30 days4+ days7 days1 day
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a348x250208 x 208320 x 320
Size1 inchn/a1.421.04 inches1.19 inches
Touch
Typen/an/aOLEDLCDOLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

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

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aFitbit OSBuilt-inWear OS
Appsn/a
Musicn/a

All Wearables