A second masthead Android-smartphone Samsung, which has replaced the Galaxy S (I9000). It is the same concept, and has received several significant updates. Among them are improved proprietary interface Touch Wiz, doubling of the "RAM" (up to 1 GB) to use 2-core processor with a frequency of 1.2 GHz, Android 2.3. Screen in Samsung Galaxy S II (I9100) was slightly larger and is also based on the matrix of Super AMOLED, which makes it one of the best. Cameras significantly improved: the basic matrix has received 8 megapixels and the ability to shoot Full-HD-video, and the second (on the front sang) was replaced by a 2-megapixel. It is worth noting support Galaxy S II technology Wi-Fi Direct, which is used to exchange data with a Wi-Fi-devices directly. However, the machine is not perfect. Galaxy S II is clearly not enough buttons for the camera and HDMI-out did not stop.