I was recently staying at a Marriott hotel where I went swimming with my apple watch across the pool and back TWICE before I realized I was wearing my apple watch sport. I swim underwater by the way totally submerged. It never quit working and now a week later it's still just fine.People have showered with it, I've run in the rain with it, and I've washed it off in the sink. I think the AW is not going to be affected by some water - unless you take it diving![]()