According to Apple, the device is 18 percent thinner than the iPhone 4S, measuring just 7.6mm. It's also 20 percent lighter than its predecessor at 112 grams. The company is calling the aluminum backplate -- which has been shown in several leaked images over the last several weeks -- the "slate."
One of the biggest additions is the new 4-inch Retina Display, with the same 326 pixels per inch found in the iPhone 4S. The phone … Read more