Bluetooth two connections?


I want to buy a garmin vivoactive 4s to use for heartrate figures using zwift.

But can i also connect my tacx flux s and a garmin vivoactive 4s to zwift (on my laptop) by bluetooth? Or do i need an ant+ dongle?


The Garmin watch would broadcast HR in ANT+, not Bluetooth. There are only 2 Garmin watches that broadcast in Bluetooth and that is not one on them.

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Hi paul,

Thank you very much.

Can you tell me the garmin forerunner 645 does?


Nope, here is the link for which are supported: