Garmin Fenix 3 vs. Garmin 645 Music vs. Fitbit Charge 3 vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4

 
Fenix 3
645 Music
Charge 3
Access Sofie HR
Vivosmart 4
 GarminFenix 3Remove Buy NowGarmin645 MusicRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$500$450$150$395$130
Release20152018201820192018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration50 hours to 6 weeks7 days7 days2 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution218 x 218240 x 24066 x 18390 x 39048 x 128
Size1.2 inches1.2 inches.721 inches1.19 inches0.74 inches
Touch
TypeChroma LEDMIPOLEDOMOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance10 ATM5 ATM5 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OS
Apps
Music

All Wearables