No. User-replaceable batteries don't work too well with IP68 ratings. Nor do they work too well with devices where miniaturization is important.
I'm wearing a Fitbit as I write this. User-replaceable battery?? It's 30 grams, not counting the band. How much bigger and heavier would it be with an openable seal? The seal has to take a lot--it's got 50m water resistance. Likewise, the battery needs to be secured against motion--that either means glue or mechanical pressure against it. The latter likewise increases size and weight.
Other than these cases I agree with you. Batteries should be readily swapable.
I'm wearing a Fitbit as I write this. User-replaceable battery?? It's 30 grams, not counting the band. How much bigger and heavier would it be with an openable seal? The seal has to take a lot--it's got 50m water resistance. Likewise, the battery needs to be secured against motion--that either means glue or mechanical pressure against it. The latter likewise increases size and weight.
Other than these cases I agree with you. Batteries should be readily swapable.