Garmin Fenix 3 vs. Polar M400 vs. Garmin Fenix 5x Plus vs. Fitbit Flex

 
Fenix 3
M400
Fenix 5x Plus
Flex
 GarminFenix 3Remove Buy NowPolarM400Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$500$200$850$100
Release2015201420182013

Activity & Fitness

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

Battery

Duration50 hours to 6 weeks8 hours to 30 days20 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution218 x 218n/a240 x 240NA
Size1.2 inchesn/a1.2 inchesNA
TouchNA
TypeChroma LEDn/aMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM3 ATM10 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSNA
Apps
Music

All Wearables