Fitbit Alta vs. Garmin Forerunner 935 vs. Garmin 645 Music vs. Michael Kors Access Sofie HR vs. Apple Series 6

 
Alta
Forerunner 935
645 Music
Access Sofie HR
Series 6
 FitbitAltaRemove Buy NowGarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$500$450$395$399
Release20162017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks7 days2 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240240 x 240390 x 390384 x 480
Sizen/a1.2 inches1.2 inches1.19 inches40mm
Touchn/a
TypeOLEDLCDMIPOMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a5 ATM5 ATM0.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWear OSWatchOS 5
Apps
Music

All Wearables