BLE is used to connect SafeSky, external devices like the Aero Tracker and the FlySky display and SkyDemon together. It just works as a blue tooth connection.
I have a Samsung Galaxy S22+ smartphone and it works simply and very well.
I had a reply from SafeSky telling me this is currently disabled in the public release - if one or all of these devices is connecting and using the connection then it is something that the device can control and is hidden to the rest of the world.
I´m hoping SafeSky will let me use it as I have developed a full blown EFIS system and would love to add traffic awareness to it but without this connection it isn´t possible from SafeSky.