Polar M600 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Fitbit Zip vs. Michael Kors Access Sofie HR

 
M600
Activite Sapphire
Charge 2
Zip
Access Sofie HR
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowFitbitZipRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$330$450$150$60$395
Release20162014201620122019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months5 days6 months2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/an/an/a390 x 390
Size1.3 inches1.3 inchesn/an/a1.19 inches
Touchn/an/a
TypeTFTAnalogOLEDn/aOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATMn/aSplash Resistant0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/an/an/aWear OS
Apps
Music

All Wearables