the easiest way is to just separately encapsulate all parts that need to be removable (i.e. the battery + wireless charging coil in one piece and the rest of th

the easiest way is to just separately encapsulate all parts that need to be removable (i.e. the battery + wireless charging coil in one piece and the rest of the phone in the other), and only have the connectors as the exposed pieces. A gasket around those and contacts far enough away from each other for good measure and you're good to go. Plus the Samsung Active line never needed to go to these extremes to churn out perfectly fine waterproof phones at slightly higher than average prices. And they weren't the only ones with these sort of offerings.