Iphone 5s is the world best phone. I have this phone. its specification is awesome. its has 1gb ram and no hang problem with this handset. its camera quality is too good. autofocus, 8megapixel camera and 326ppi, hd recording, sound is so clear, easy to carry and easy to use. it is 4g phone. well jio is working in it. its touch is so smooth. it has ios operating system. diri is working awesome and easy to fine anything.