As others say, Bitwarden checks all of those boxes, and KeepassXC technically doesn’t fit the “not self hosted” requirement, but you can store your database file in any cloud storage you want.

Every android phone I’ve owned has crapped out by the 2 year mark, and that’s even when not using custom ROMs or rooting. IMO iPhones are more reliable and provide a more consistent UX. They also offer a better baseline level of privacy. (Granted, you can’t beat GrapheneOS and the like on android)