Apple iPhone 4 is a touch smartphone designed by Apple. The iPhone and iPhone 3 G is the fourth generation successor.

This video (FaceTime as marketed by Apple), telephony, media consumption, books and magazines, movies, music and games including, primarily, and is marketed for general Internet access and email. The 2010 WWDC at Moscone Center June 7, 2010 June 24, 2010, San Francisco, announced the United States, United Kingdom, France, Germany and published in Japan.

Apple iPhone 4 IOS, iPhone iPad last one is operating, and iPod Touch operating system used in the system. This is mainly multi-touch screen, the user's fingers under the supervision of a physical contact.
iPhone 4 and its predecessor, the new plan, which includes a non-insulated stainless steel is the most obvious difference, the antenna operates as a tool. Internal components located between two plates of chemically strengthened aluminosilicate. Apple A4 processor and 512 MB of eDRAM, more than twice its predecessor, and is four times larger than the original iPhone. Its 3.5-inch (89 mm) 960 x 640 pixels position in the market with LED backlit LCD display with a resolution of the "retinal screen."