iPhone contains in itself a light diminutive facility with 3 technologies within: the most up-to-date smartphone, a wide-frame iPod with a sensitive pad and an epoch-making internet communicator that can exploit e-mail, web-browser and map explorer. iPhone presents a new user interface: a touch monitor. Multi-touch technology and innovational software support gives the ability to the customer to rule the iPhone only with his fingers. This smartphone completely remakes the conception of controlling your mobile telephone. iPhone includes a program for SMS with keyboard QWERTY. Using it a buyer may get and send the messages in a multisession mode. When a consumer wants to type a message, the iPhone presents him dainty sensitive keyboard, which foresees the words and rectifies the errors. This board is really comfortable in comparison with those wee plastic keyboards on the rest of the cell phones. Your PC or Mac can be simply synchronized with the calendar inserted for you in the iPhone. Even if it is a used smartphone it has a miniature camera with 2-megapixel matrix and specific attachment for your images. You may work with your photo-library the comfort of which is in synchronization with your PC and Mac. Also you can choose photos for screensaver or to attach them to your e-mail scripts. The usage of GSM networks with a high-speed standard of data transfer is a great plus in work with iPhone. Consumer can watch a motion picture or his favorite TV program on the 3,5 inches display. All digital content you were encountered with on iPod, today is affordable on iPhone. Users may synchronize musical files and movies of supporting formats from iTunes library on PC or Macintosh to iPhone and then play it on the device. iPhone has worthy internet browser Safari. User may watch internet pages as well as it is on the computer and easily enlarge them with the only fingertip pressure. It supports the connection through Wi-Fi or EDGE bridges. User's tabs can be synchronized with the help of personal computer or Macintosh. There are also embedded sensors of location, of nearness of physical objects and photo detector with which the cell phone is fitted out. These sensors greatly economize accumulator resource. When you rotate iPhone the picture is turned upside-down. So, the purpose of the locations sensor is to rotate the picture at the same time with your iPhone. It makes possible for you to see the whole width of the Global Network page or to watch photos in wanted format. To economize the capacity of the accumulator the sensor of nearness of physical object finds out the moment of bringing the cell phone to the ear of the client and deactivates the display. Also it turns on the program of stray keystroke. To fit the luminance of the display to the conditions that are around you photo detector is used. Buy used cell phones by Apple and you will get all these facilities as if it were a shiny new iPhone. You could know that the first release of this smartphone was only on January 9, 2007. So, used cell phones are not really used in this sense, because they are still fresh ones.