• 4-inch Retina Display screen, at 1136 x 640 pixels. All previous iPhones had 3.5-inch screens. Like earlier Retina Displays, the screen offers 326 pixels per inch
• The Apple A6 processor. The iPhone 5 is the first Apple device that uses this processor, which the company claims offers twice the performance of the A5 chip in the iPhone 4S
• 4G LTE networking support and support for DC-HSDPA networks
• Dual-band 802.11n Wi-Fi (support for 2.4GHz and 5GHz networks)
• Panoramic photos
• Lightning dock connector. This smaller, reversible dock connector uses just 9 pins as opposed to the earlier 30-pin connector.

Other elements of the phone are the same as on the iPhone 4S, including FaceTime support, A-GPS, Bluetooth, audio and video support, and more.

Cameras
Like previous models, the iPhone 5 has two cameras, one on its back and the other facing the user for FaceTime video chats.

While the back camera in the iPhone 5 offers 8 megapixels and the ability to record in 1080p HD like its predecessor, a number of things are different about it. Thanks to new hardware--including a sapphire lens and the A6 processor--Apple claims that photos taken with this camera are more color faithful, captured up to 40% faster, and are better in low-light situations. It also adds support for panoramic photos of up to 28 megapixels which are created via software.

The front, FaceTime camera is substantially upgraded. It now offers 720p HD video and 1.2 megapixels.

Software Features
Significant software additions in the 5, thanks to iOS 6, include:

• Passbook
• Apple-created Maps app, including turn-by-turn GPS navigation
• Improved Siri features
• Do Not Disturb
• FaceTime over cellular networks, where available
• Facebook integration