Dual-core A5 chip most powerful iPhone processor up to 2x faster performance and 7x faster graphics. Super 8-megapixel resolution and a custom lens with a larger f/2.4 aperture and 1080p HD vedio recording. Video recording in 1080p amazing HD, iCloud store your content and wirelessly pushes it to all your devices. Using Siri option you can use your voice to send messages,set reminders,search for information and lot of more options.
More detail visit below site: www.apple.com