The iPhone 4S is a touchscreen slate smartphone developed by Apple Inc. It is the fifth generation of the iPhone, a device that combines a widescreen iPod with a touchscreen, mobile phone, and internet communicator. It retains the exterior design of its predecessor, iPhone 4, but is host to a range of improved hardware specifications and software updates compared to the previous model. Integrated software and hardware changes support the introduction of new user interface and functions by Apple. Highlights include a voice recognizing and talking assistant called Siri, personal computer independence, cloud-sourced data (iCloud) and an improved camera system. A selection of the device’s functions can be controlled by voice.
The iPhone 4S was unveiled at Apple’s “Let’s Talk iPhone” event on October 4, 2011 in Cupertino, California. Apple started taking pre-orders for the iPhone 4S on October 7, 2011 in seven initial countries (United States, Canada, Australia, United Kingdom, France, Germany, and Japan) with a first delivery date set for October 14, 2011, and available on that same day for direct store sales in those countries. It was released in 22 more European, American and Asian countries, including Ireland, Mexico and Singapore on October 28.
It will be available on 100 carriers in 70 countries overall, including AT&T, Verizon, and for the first time, also for Sprint and C Spire customers in the United States. In Japan it will be available for au (a KDDI brand) and Okinawa Cellular, for the first time.
For US customers, while pre-orders for purchasers buying contracts started on October 7, 2011, unlocked (contract-free) sales are expected to begin in November 2011. AP said that AT&T described early iPhone 4S demand as “extraordinary”.
The iPhone 4S is primarily a combination of a hand-held computer, cell-phone, GPS, digital/video camera, and music player into one device, powered by a rechargeable lithium-ion battery. It is supported by an online infrastructure where media and secondary applications can be acquired to run on the device, thereby expanding its capabilities.
Design
The iPhone 4S retains almost all of the same design features as its predecessor, the iPhone 4. The front and back are both flat, the screen being made of glass. There is a camera on the back and the sides are stainless steel with metal buttons. It keeps the 3.5 inch (8.89 cm) screen of past iPhones with the “home” button at the bottom. The iPhone 4S comes in two colors, black and white.
Source: http://en.wikipedia.org/wiki/IPhone_4S
