I don't think it will be possible to make wireless earbuds or a ring with replaceable batteries without seriously compromising the ergonomics of fitting onto or into the human body.
I have a pair of earbuds designed to be as diminutive for sleeping comfortably and I have no idea how you would do that with a replaceable battery even if Airpod sized devices can be done.
Apple will proudly announce that they've invented the replaceable battery.
Unapologetically plastic. or replaceable. Their marketing department will work hard to sell it as revolutionary.
I don't think it will be possible to make wireless earbuds or a ring with replaceable batteries without seriously compromising the ergonomics of fitting onto or into the human body.
I have a pair of earbuds designed to be as diminutive for sleeping comfortably and I have no idea how you would do that with a replaceable battery even if Airpod sized devices can be done.
The Fairbuds proved that it's possible.
Counterexample: hearing aids.
Now use rechargeable batteries that are not user replaceable
What are those sleeping earbuds?