Garmin Forerunner 225 vs. Polar M400 vs. Apple Watch vs. Garmin Forerunner 235 vs. Fitbit Flex

 
Forerunner 225
M400
Watch
Forerunner 235
Flex
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowAppleWatchRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$200$349$299.99$100
Release20152014201520172013

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks8 hours to 30 days18 hours9 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/a340 x 272 or 390 x 312215 x 180NA
Size1 inchn/a1.5 inches or 1.65 inches1.23 inchesNA
TouchNA
Typen/an/aAMOLEDMIPLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMIPX75 ATM1 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aWatch OSNA
Appsn/a
Musicn/a

All Wearables