Polar M400 vs. Polar M430 vs. Garmin Fenix 5x Plus vs. Fitbit Flex vs. Garmin Vivosmart 4

 
M400
M430
Fenix 5x Plus
Flex
Vivosmart 4
 PolarM400Remove Buy NowPolarM430Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$200$255$850$100$130
Release20142017201820132018

Activity & Fitness

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

Battery

Duration8 hours to 30 days30 hours20 days5 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128x128240 x 240NA48 x 128
Sizen/a1.4 inch1.2 inchesNA0.74 inches
TouchNA
Typen/aLCDMIPLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMWR3010 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNA
Apps
Music

All Wearables