Garmin Forerunner 225 vs. Polar M400 vs. Fitbit Alta vs. Garmin Vivoactive 3 vs. Fitbit Flex

 
Forerunner 225
M400
Alta
Vivoactive 3
Flex
 GarminForerunner 225Remove Buy NowPolarM400Remove Buy NowFitbitAltaRemove Buy NowGarminVivoactive 3Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$300$200$130$299$100
Release20152014201620172013

Activity & Fitness

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

Battery

Duration10 hours to 4 weeks8 hours to 30 days5 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180n/an/a240 x 240NA
Size1 inchn/an/a1.2 inchesNA
Touchn/aNA
Typen/an/aOLEDMIPLED

Functions

Audio Speaker22Alerts only
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATMn/a5 ATM1 ATM

Notifications

Phonen/a
Emailsn/an/a
Textsn/a

Software

Operating Systemn/an/an/aNA
Appsn/a
Musicn/a

All Wearables