Polar M400 vs. Fitbit Ionic vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Skagen Falster 2

 
M400
Ionic
Forerunner 235
Flex
Falster 2
 PolarM400Remove Buy NowFitbitIonicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowSkagenFalster 2Remove Buy Now

Basic Info

Suggested Price$200$299$299.99$100$199
Release20142017201720132019

Activity & Fitness

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

Battery

Duration8 hours to 30 days4+ days9 days5 days1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250215 x 180NA320 x 320
Sizen/a1.421.23 inchesNA1.19 inches
TouchNA
Typen/aOLEDMIPLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM50m5 ATM1 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNAWear OS
Apps
Music

All Wearables