Polar M600 vs. Fitbit Charge 2 vs. Garmin 645 Music vs. Garmin Vivosmart HR Plus vs. Michael Kors Access Sofie HR

 
M600
Charge 2
645 Music
Vivosmart HR Plus
Access Sofie HR
 PolarM600Remove Buy NowFitbitCharge 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart HR PlusRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$330$150$450$179$395
Release20162016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 days5 days2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a240 x 240160 x 68390 x 390
Size1.3 inchesn/a1.2 inches0.5 inches x 0.8 inches1.19 inches
Touchn/an/a
TypeTFTOLEDMIPLCDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8n/a5 ATM5 ATM0.3 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNAWear OS
Apps
Music

All Wearables