Is it still water resistant?
I’ve been maintaining up to iPhone 6s for my 3 daughters for years now, screens, batteries, cameras, microphones & speakers. One transitioned to my old 7 recently & battery needed replacement - only on pulling off screen did I realise it was water resistant…it isn’t now…but will be next time I need to replace screen (have bought the correct glue as sealant).
I now have an 11 - ear speaker is low output, so have to use speaker or headphones - assembly comes with sensor necessary for faceID, fitting a new kills it. Ifixit.com has instructions how to swap just the ear speaker from a new assembly.
with the internet, it’s pretty easy to keep things alive *if* you can DIY, CD players and Apple products pretty similar.