Diagonal display iPhone 4 is 3.5 inches, similar to iPhone 3GS. But the resolution - in the whole 4 times higher: 960x640 pixels. In addition, the iPhone 4 a 5 megapixel camera with flash and video recording 720p, as well as the front camera. Then, like iPhone 3GS possible photo and video were much more modest: 3.2 megapixel camera without flash, VGA video recording. A front camera in iPhone 3GS and was not at all. In addition, the new iPhone 4 supports not only HSDPA, but HSUPA, a wireless standard, Wi-Fi add a range 802.11n. New also received not only the accelerometer and digital compass as iPhone 3GS, and gyroscope. It uses a Micro SIM card instead of the usual SIM, and her body - noticeably thinner. The thickness of the iPhone 4 does not exceed 9.3 mm, making it perhaps the most subtle communicator in the industry. Overall dimensions iPhone 4 is 115,2 x58, 6x9, 3 mm, and iPhone 3GS - 115,5 x62, 1x12, 3 mm. Weight - 137 and 135 grams respectively (new slightly heavier). And, finally, the iPhone 4 more battery life on almost all indicators: 7 hours (3G) and up to 14 hours (2G) of talk time, up to 10 hours when transferring data to Wi-Fi, up to 40 hours of audio. Recall issue of a new device on 24 June in the U.S., Britain, France, Germany and Japan.