Connecting Garmin rest HR to Zwift

Hello there
I have Garmin Fenix 3 and i wan to use its rest HR Boardcast to connect to Zwift. Zwift does not see the sensor ? what i am missing ?

I am using TACXS Vortext home trainer

any idea ?

What device are you running Zwift on?

The Garmin Fenix 3 broadcast HR in ANT+ only.

I am using my laptop and connecting via blutooth to TACX.

OK, the Garmin Fenix 3 ONLY broadcast HR in ANT+ so you would need an ANT dongle in your laptop in order to connect the watch for HR.

it should be specific to Garmin fenix HR 3
or any generic dongle can do it

Any ANT+ dongle will work. I would also recommend a USB extension so you can put the ANT+ dongle as close to your trainer as possible. Yes, I am recommending you connect the train using ANT+ also.

can u recommend a brand/ model?

These work:

Or this:

And this: