>>305704smartphones (the hardware at least) are perfectly fine. mine is 8 years old, the battery is original, it's pretty fine. i don't even use a case. the cover for the camera lens came off a few years ago but it still takes functions
the problem is solely with the software. apps suddenly stop working because your android version is out of date. it should be illegal for your banking app to just stop working
unrelated, but this is something that made me realize 'website apps' are actually useful, at least for this reason. the browser becoems the OS, that is all you need to keep updated, in order to access all your important apps.