I have successfully paired with F8 and Aftershokz Aeropex (Watch Settings/Connectivity/Sensor+accessories) few days ago, but today when I play music (by holding bottom left button), the save headphone is gone , only option is to listen to speaker... I have no choice but to pair them agaim. Besides Aeropex, I have Styrd Duo paired with F8
I don't have such issues with my previous FR965 pairing with Aeropex and Stryd Duo, they worked flawlessly, I just upgraded from FR965 to F8 early this month, feel disappointed with the buggy firmware.