Been reading up on this because others has brought it up in different forums. The answer, as with most things related to treadmills and fitness technology in general, seem to depend entirely on the model. If your treadmill have what is labeled as a "Bluetooth Smart" button on the console, it will not pair via bluetooth in the typical way that you may be used to see on most devices in your home or even with bluetooth devices like headphones. Instead, you would have to download the iFit application on your mobile device, hit the Bluetooth Smart button on the treadmill, and then pair the treadmill to your phone through the iFit application.
The other issue is that, on some treadmills at least, the bluetooth is limited to iFit alone; meaning that you are not be able to use the bluetooth to stream content from Spotify or YouTube to your treadmill's speakers. While this may be an issue for those of us who value having the freedom to use bluetooth for more than one company's subscription service, it seem to be how the treadmills are set up and modeled for those with iFit subscriptions. The other question is, have any of you played with these treadmills and attempted to determine which models utilize the bluetooth only for iFit versus those which do allow for bluetooth to be paired with audio players like Spotify?
The other issue is that, on some treadmills at least, the bluetooth is limited to iFit alone; meaning that you are not be able to use the bluetooth to stream content from Spotify or YouTube to your treadmill's speakers. While this may be an issue for those of us who value having the freedom to use bluetooth for more than one company's subscription service, it seem to be how the treadmills are set up and modeled for those with iFit subscriptions. The other question is, have any of you played with these treadmills and attempted to determine which models utilize the bluetooth only for iFit versus those which do allow for bluetooth to be paired with audio players like Spotify?