A:Answer Hi, Rower.
We tested and confirmed connectivity for the latest models of iFit, NordicTrack, Peloton, Concept2, and Tonal. The Charge 6 will work with other equipment and apps not mentioned, but not all Bluetooth-compatible devices and apps will connect or behave similarly. We'll be adding more devices and apps in the future.
More about it here: https://help.fitbit.com/articles/en_US/Help_article/2482.htm
If you have other questions, please reach out to us at: https://goo.gle/contactfitbit