Didn't said anything different. I just said that they will have to figure it out eventually, if they haven't already. Smartphones and other devices still include at least one connector that is exposed and not sealed. Making the battery compartment better sealed against water is probably an already solved problem for big manufacturers. If it isn't yet, they will figure it out because it will be a necessity. Then again not all phones are build to be water proof in the essence of submerging them into water. They only need to not get short out and burn out in a rainy day because of a few drops of water.
