Polar M600 vs. Fitbit Flex 2 vs. Garmin 645 Music vs. Michael Kors Access Sofie vs. Garmin Vivosmart 3

 
M600
Flex 2
645 Music
Access Sofie
Vivosmart 3
 PolarM600Remove Buy NowFitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess SofieRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$330$100$450$395$139.99
Release20162016201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days7 days1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution240 x 240n/a240 x 240390 x 390 1.19 inches64 x 128
Size1.3 inchesn/a1.2 inchesNA
Touchn/an/aAMOLDED
TypeTFTLEDMIPOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM5 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0
Apps
Music

All Wearables