Water resistant not proof - no consumer product is going to be sold as water proof if the seal can be broken by undoing a few screws to change battery or repair

Water resistant not proof - no consumer product is going to be sold as water proof if the seal can be broken by undoing a few screws to change battery or repair. https://support.apple.com/en-us/108039 https://support.apple.com/en-us/108039 > These iPhone models are splash, water, and dust resistant and were tested under controlled laboratory conditions...