I have been using a snap on back case but since I got the 1800 mAH battery and it still is thin, but I alternate with the batteries, haven't been using the case. It is tough to get it off. I have ordered a red battery door and waiting for it to arrive. I would like to find a nice case to slip it into but haven't found one. I am really careful with my phone, don't have any scratches on it.....but I will use the snap on case maybe later on again. I like switching things out cause I get bored. I am on the look out for a case though, would love to find one.