I questioned this when I realised the condensation on the sides of the window in my room. I sleep in a very small room and it's winter here, so warm indoors and cold outdoors, and often when I wake up there is condensation on the sides of the only window in my room; after a quick search this is due to the high moisture in my small room, which stays closed during the night. I know iPhones have a good water resistance, but how about humidity? Please note that the walls are not dripping wet, the only condensation I see is on the windows. At this point I am considering getting apple care which I still can, but I don't know if this is a good reason? I am thinking that if the room is high in humidity then perhaps it's able to damage my iPhone's internals (?) or maybe this won't cause any damage at all and therefore it would be a waste to get apple care because of this.