The iPhone 4S is a touchscreen slate smartphone developed by Apple. It is the fifth generation of
the iPhone, a device that
combines a widescreen iPod with 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 will be released in 22 more European, American and Asian
countries, including Ireland, Mexico and Singapore by the end of October. It
will be available on 100 carriers in 70 countries overall, including AT&T, Verizon, and for the first time, also
for Sprint 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 says that AT&T described early
iPhone 4S demand as "extraordinary".