Fénix 5 accelerometer as treadmill pace

I would like to ask if someone know how to use the Garmin Fenix 5 accelerometer to use in Zwift as a pace meter. Fenix 5 accelerometer estimate the speed and I wonder if it could be use to Zwift. I can see that the HR can be use but I have not see anything regarding the speed. Thank you very much.

Garmin watches only have the ability to broadcast HR (it’s done in ANT+) .

if you have a spare android device this app will do the trick:

i have tried it and it works well - it broadcasts speed via bluetooth

i don’t have any apple devices so not sure if there is an ios version