Polar M400 vs. Garmin Fenix 5x Plus vs. Fitbit Flex vs. Michael Kors Access Sofie HR

 
M400
Fenix 5x Plus
Flex
Access Sofie HR
 PolarM400Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$200$850$100$395
Release2014201820132019

Activity & Fitness

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

Battery

Duration8 hours to 30 days20 days5 days2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA390 x 390
Sizen/a1.2 inchesNA1.19 inches
TouchNA
Typen/aMIPLEDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM10 ATM1 ATM0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNAWear OS
Apps
Music

All Wearables