For example if I go into settings and see how much space I have left, it says 10GB and that I used 2.7GB. Fair enough, because I know some of my 16GB is used for iOS. However if I add up all my apps, I only have 1GB of use. I can't imagine I have 1.7GB of photos (It doesn't tell me how much space photos are using). I have no music nor videos on my phone.