Fitbit Flex 2 vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Skagen Falster 3 vs. Apple Series 6

 
Flex 2
645 Music
Vivofit 4
Falster 3
Series 6
 FitbitFlex 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowSkagenFalster 3Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$450$79.95$295$399
Release20162018201820202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days1 year1 dayNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 24088 x 88416 x 416384 x 480
Sizen/a1.2 inchesNA1.28 inches40mm
Touchn/a
TypeLEDMIPNAOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM5 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 5
Apps
Music

All Wearables