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

 
Vivoactive HR
Alta
645 Music
Access Sofie HR
Series 6
 GarminVivoactive HRRemove Buy NowFitbitAltaRemove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$250$130$450$395$399
Release20162016201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 8 days5 days7 days2 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205n/a240 x 240390 x 390384 x 480
Size1.38 inchesn/a1.2 inches1.19 inches40mm
Touchn/a
Typen/aOLEDMIPOMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMn/a5 ATM0.3 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aWear OSWatchOS 5
Apps
Music

All Wearables