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

 
M400
Fenix 5x Plus
Charge 3
Flex
 PolarM400Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$850$150$100
Release2014201820182013

Activity & Fitness

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

Battery

Duration8 hours to 30 days20 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a240 x 24066 x 18NA
Sizen/a1.2 inches.721 inchesNA
TouchNA
Typen/aMIPOLEDLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM10 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNANA
Apps
Music

All Wearables