I have a Iphone 4S. In starting the iphone runs smoothly but after sometimes it starts hanging . The camera are good at starting but after sometimes it’s quality gets worst. Sound system are excellent. Major problem is if low RAM . Size is very small as compared to latest mobile phones.Major problems in iphone is you cannot download anything free of cost. But this iphone has some strong point also at starting it’s camera are excellent. Works smoothly . Looks are super awEsome. But I never sugest to buy it nowadays.