Polar M400 vs. Garmin Fenix 5x Plus vs. Fitbit Flex vs. Michael Kors Access Sofie HR vs. Apple Watch 8

 
M400
Fenix 5x Plus
Flex
Access Sofie HR
Watch 8
 PolarM400Remove Buy NowGarminFenix 5x PlusRemove Buy NowFitbitFlexRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$200$850$100$395$499
Release20142018201320192022

Activity & Fitness

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

Battery

Duration8 hours to 30 days20 days5 days2 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240NA390 x 390340 x 272 or 390 x 312
Sizen/a1.2 inchesNA1.19 inches1.5 inches or 1.65 inches
TouchNA
Typen/aMIPLEDOMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM10 ATM1 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSNAWear OSWatchOS 9
Apps
Music

All Wearables