According to me Nokia 1100 is a phone with the best battery backup ever.It lasts longer for 10days idle, which is great as I had always wanted a spare phone for emergency and this is the phone which is excellent for that.along with this huge battery life it also gives a very reliable quality and have a very strong body which do not break even thrown from a top of a building.Atlast I want to say that this is the best phone I have ever buyed.