When you have iphone 4s, its like you have lion of the jungle.i purchased it from sirsa one year ago.because of my carelessness it felled a couple of times from my hands but see the miracle its completely working.APPLE is something that is different from the other brands and no virus can enter in your phone.i just wonder that it’s RAM is only 512MB but it never hangs.this is what I love about apple products.it’s camera is very clear.so i’m fully satisfied with itwhat I don’t like about this phone is its screen size. otherwise I give it 5 stars.