The one I use doesn't have steam which helps a lot. My phone gets really hot of course but I wrap it up in paper towels to help keep it from getting too hot. One of my friends has problems with her phone when she takes it in but the only issue I have is it gets a little slower. I have an android so I'm not sure if that makes a difference at all. I wouldn't suggest trying it with such an expensive phone though because I would hate for it to get messed up even though mine is fine.