Garmin Forerunner 935 vs. Garmin 645 Music vs. Michael Kors Access Sofie vs. Fitbit Charge 3 vs. Fitbit Flex

 
Forerunner 935
645 Music
Access Sofie
Charge 3
Flex
 GarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess SofieRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$500$450$395$150$100
Release20172018201720182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 2 weeks7 days1 day7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolution240 x 240240 x 240390 x 390 1.19 inches66 x 18NA
Size1.2 inches1.2 inches.721 inchesNA
TouchAMOLDEDNA
TypeLCDMIPOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2.0NANA
Apps
Music

All Wearables