Which indoor bike with Fenix 7

Hi,

i want to buy a new indoor bike. Does anybody have experience with connecting the Fenix 7 to the bIke’s sensors?

I am searching for a bike that not only sends cadence and power, but also is capable of receiving the resistance from the watch in order to use the Smart Trainer functionality of the watch. 

Is this only possible with ANT+ or does the watch also support BT? I already tried a IC7, but this bike only sends cadence and power. Then choosing the smart trainer option the watch Scans for sensors but does not find anything suitable - without giving me a hint what is is searching for,

thanks in advance.

regards

Malte