I tried some things but I couldn’t really get any permanent results.
Often when I connect the headphones to the watch (Only the watch!) they work just fine, but when I start any activity the headphones will disconnect and then restart itself.
Once deleting and re-pairing the connection helped but only once and now I have the same problem over and over. Which of course is annoying when I leave the house without my phone for running and then find out it’s not working again.
Right now, everything is up-to-date on both the headphones and the Vivo.
Maybe somebody has an idea what to do about it? Right now I don’t know what to do because I haven’t found any workaround or fix that works consistently.