Tough design traits
In order to achieve these IP ratings on the devices, manufacturers have to equip their mobile devices with flaps and covers over the various ports and headphone jack.
Others like Samsung adopt “a fully sealed design” for its Galaxy S4 Active to keep dust particles out and protects against water damages. However, the catch is that you have to check the sides of the removable rear cover of the Galaxy S4 Active are closed properly. There are rubber gaskets on the rear cover to help keep moisture out.