Polar M600 vs. Fitbit Alta vs. Fitbit Flex 2 vs. Fitbit Charge HR vs. Michael Kors Access Sofie HR

 
M600
Alta
Flex 2
Charge HR
Access Sofie HR
 PolarM600Remove Buy NowFitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowFitbitCharge HRRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$330$130$100$150$395
Release20162016201620152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days5 days5 days2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/an/aNA390 x 390
Size1.3 inchesn/an/aNA1.19 inches
Touchn/an/an/aNA
TypeTFTOLEDLEDOLEDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATM1 ATM0.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemAndroid Wearn/an/aNAWear OS
Apps
Music

All Wearables