How does the tiny rubber ring around a water resistant phone’s SIM tray hold back all the water? If you pinch or sit on it, is it broken?
I get how the charge port and buttons are protected, you can’t remove them. But when you change the SIM, there’s just a small strip of soft gooey material near the top of the tray. It looks like it can’t possibly protect against the force of dunking the entire thing underwater. Is it the weakest part of the waterproofing, does it wear out?