The European Union is working on legislation that would require smartphone design to have easily replaceable batteries, but we doubt Apple would agree willingly.
What a horseshit excuse: add 6 screws on your backplate, give it a frame with center glass, add a grommet. Give a torque setting for the screws to have a good seal in your instructions. L
Done.
Samsung did this shit years ago in a phone with a replaceable plastic back.
Since the Hero 5, Go Pros have been waterproof without the case. The current GoPro is waterproof to 10 meters without a case or 60 meters with the case.
Compared to the current iphone which is only water resistant, so can be submerged for 30 minutes, upto 6 meters.
They are if i recall correctly(at least the newer ones) waterproof till about 30ft without the extra case and with it till 150ft or so. But the extra case is very thick and sturdy