The
iPhone is a
mobile phone with
Wi-Fi made by Apple. It does many things that a
computer can do, but is small enough to fit in someone's hand. It is a mobile phone, meaning that it makes calls
without wires. It can access the
Internet as well. Like an
iPod, it plays
music and
videos that have been put on it from a big
computer, which is called syncing. It also has a
calendar and
camera, and can send
text messages. People use the iPhone by
touching the
screen with a finger or two. This is done by tapping, dragging, and even typing on a
keyboard shown on the screen. The first-generation iPhone can run
iPhone OS 3.1.3, the iPhone 3G can run
iOS 4.2.1, and the iPhone 3GS can run
iOS 6.1.6. The iPhone 4S and later can run the newest version of iOS,
iOS 9.
There have been ten types of iPhone models. The
original iPhone was released on June 29, 2007. On July 11, 2008, the
iPhone 3G was released which, hence the name, got upgraded with 3G wireless internet. On June 17, 2009, Apple released the
iPhone 3GS which featured a compass and a 3.2 megapixel video camera. On June 24, 2010, a new version of the iPhone, the
iPhone 4, was released. It has FaceTime included, and has an updated
operating system that allows quicker navigation of all the features. The iPhone 4 also has more
pixels on the screen than previous version of the iPhone, which makes all features such as pictures and videos look sharper. A minor upgrade to the iPhone 4 was the
iPhone 4S, which came on October 14, 2011, with a new feature called
Siri, which is a voice activation system. The
iPhone 5 was released on September 21, 2012. The most noticeable change is its bigger 4
inch screen. On September 10, 2013, two new iPhones called the 5C and 5S were announced. They were released on September 20, 2013. The
iPhone 5S has a new unlocking system called Touch ID which reads your fingerprint. The
iPhone 5C is a cheaper model of the iPhone 5S which is also the first iPhone available in different colors that aren't black and white. The
iPhone 6 and
iPhone 6 Plus were released on September 19, 2014. They both have bigger screens than the iPhone 5, measuring at 4.7 inches and 5.5 inches, respectively. The
iPhone 6S and
iPhone 6S Plus were released on September 25, 2015. They both come in a new color, Rose Gold, and
In most places, the iPhone is only allowed with carriers (cellphone service providers) that Apple has an agreement with. Someone who buys an iPhone also signs a
contract with the carrier, which is an agreement to pay for their services. A
mobile phone contract usually lasts for one or two years, and the person buying the phone pays the carrier every month. At first, they pay less than the iPhone is worth because they will pay the rest later through fees as part of their contract. The contract also says the iPhone may only be used on their network. However, some people do not like that, so they 'unlock' their iPhone so it can be used with other carriers.
