The new image signal processor (ISP) introduced in the Apple A7 brought smile to the faces of iphone 5s users because it is up to twice as fast as the graphics power compared to it predecessor (Apple A6). To crown it all, an improvement iPhone 5s iSight camera develops better balance, exposure, sharpness, low-light, less color distortion, less motion blur. These features peculiar to iphone 5s does not mean it is the best version of iphones.