Vivoactive 4 as Heart rate source for Zwift

Hey guys, I got my Vivoactive 4 and wanted to use it to track and display my heart rate in Zwift. Unfortunately, I absolutely cannot connect the Vivoactive 4 to Zwift to display my heart rate. Do you have any ideas how I can do that?

thanks in advance.

Top Replies

trux 11 months ago in reply to alfredolucas +2

Vivoactive 4 broadcasts the HR only over ANT+, it does not have the option to broadcast over Bluetooth like other, more recent Garmin watches have. It means the device that runs Zwift has to have an ANT…
trux 11 months ago in reply to 4411990 +1

The problem is that there is only a handful of phones having ANT+ hardware, so that will not work for everyone.

ANT+ enabled phones are listed for example here: ANT+ in Phones and Tablets - THIS IS AN…

All Replies

0 4411990 over 1 year ago

Go to settings on watch, and broadcast the HR. Zwift will see it. It works.

0 C.Rila over 1 year ago in reply to 4411990

Hi guys, having the same problem here. I'm broadcasting the HR. But Zwift doesn't see hit. Any other suggestions?

0 alfredolucas 11 months ago

Any resolution for this issue? Same here!

0 seilogramp 11 months ago in reply to alfredolucas

alfredolucas said:
Any resolution for this issue?

Did 4411990's post not work for you?

0 alfredolucas 11 months ago in reply to seilogramp

Nope. Same issue reported by C.Rila.

0 trux 11 months ago in reply to alfredolucas

Vivoactive 4 broadcasts the HR only over ANT+, it does not have the option to broadcast over Bluetooth like other, more recent Garmin watches have. It means the device that runs Zwift has to have an ANT+ receiver. If you run Zwift on a computer, there are ANT+ USB sticks, but check first at Zwift whether it supports ANT+ receivers at all.

0 4411990 11 months ago in reply to trux

Yes, I use my phone to run the Zwift app, and it has ANT+ drivers, etc.so nothing special needed.

0 trux 11 months ago in reply to 4411990

The problem is that there is only a handful of phones having ANT+ hardware, so that will not work for everyone.

ANT+ enabled phones are listed for example here: ANT+ in Phones and Tablets - THIS IS ANT, but it is safer to check the specs of the device used for Zwift.

0 alfredolucas 11 months ago in reply to trux

Thank you sir!

0 usrusr 11 months ago

As others have mentioned, VA4 can only broadcast on ANT+. If your Zwift can receive ANT+ (e.g. running on a PC with ANT+ receiver) you still need to activate broadcast on the watch. But you don't want always-on broadcast because of the battery life impact.

I found that the most comfortable way to enable/disable on demand is setting broadcast to "only during workout" and starting one of the indoor profiles whenever i want broadcast to happen (indoor, because i don't want to waste battery on GPS, usually i just discard that workout afterwards).