The first major redesign of the handset was the iPhone 4, which featured a combination of stainless steel and glass. Some highlights of this model were: the arrival of a front camera enabling FaceTime video calls, a retina display 960 x 480 pixels, with a density of 326 pixels per inch, 5 megapixel camera with LED flash, making it possible to make videos with HD resolution (720p). It also brought a brand new chip (A4 processor, 1 GHz frequency, with 512 MB of RAM). Its battery is a bit better than other iPhones.
Versions: 16GB / 32GB.