Water resistant is a lower threshold than waterproof, the latter being harder. Many phones are water resistant with manufacturers guidance as to time and depth

Water resistant is a lower threshold than waterproof, the latter being harder. Many phones are water resistant with manufacturers guidance as to time and depth of water it can survive, eg iPhones https://support.apple.com/en-us/108039 https://support.apple.com/en-us/108039 As far as I’m aware, after you go to Apple or Samsung for a official battery replacement, there is no advisory issued to say the repair affected the previous level of water resistance