Polar M400 vs. Polar M600 vs. Fitbit Flex 2 vs. Samsung Gear Fit2 vs. Michael Kors Access Sofie HR

 
M400
M600
Flex 2
Gear Fit2
Access Sofie HR
 PolarM400Remove Buy NowPolarM600Remove Buy NowFitbitFlex 2Remove Buy NowSamsungGear Fit2Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$200$330$100$180$395
Release20142016201620162019

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days5 days3-4 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 240n/a432 x 216390 x 390
Sizen/a1.3 inchesn/a1.5 inches1.19 inches
Touchn/an/a
Typen/aTFTLEDSuper AMOLEDOMOLED

Functions

Audio SpeakerAlerts onlyAlerts onlyBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIPX85 ATMIP680.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aTizenWear OS
Apps
Music

All Wearables