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

 
M600
Flex 2
Access Sofie
Alta HR
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$330$100$395$150
Release2016201620172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a390 x 390 1.19 inches128 x 36
Size1.3 inchesn/a1.4 inches
Touchn/an/aAMOLDED
TypeTFTLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0
Apps
Music

All Wearables