I can't answer your question. However, coming from a 6X Pro Sapphire I always seemed to have issues with my Jabra Elite Active 65t bluetooth ear buds when I was connected to both my cellphone (Samsung) and my 6X. Sometimes I'd have to remove them from the 6X and then reconnect. It was frustrating and I wasn't sure if it was the 6X, Samsung or the Jabra's fault. I just connected them in this same manner and it worked flawlessly. We'll see how it goes when I use them in an activity.
maybe in fenix 8...