Instruct: Given a question, retrieve passages that can help answer the question.
Query: When was the first iPhone released?
On January 9, 2007, Steve Jobs announced iPhone at the Macworld convention, receiving substantial media attention.[16] Jobs announced that the first iPhone would be released later that year. On June 29, 2007, the first iPhone[17] was released.
On June 11, 2007, Apple announced at the Apple's Worldwide Developers Conference that the iPhone would support third-party applications using the Safari engine. Third parties would be able to create Web 2.0 applications, which users could access via the internet.[18] Such applications appeared even before the release of the iPhone; the first of these, called OneTrip, was a program meant to keep track of users' shopping lists.[19] On June 29, 2007, Apple released version 7.3 of iTunes to coincide with the release of iPhone.[20] This release contains support for iPhone service activation and syncing.
The iPhone 5S and 5C sold over nine million units in the first three days, setting a record for first weekend smartphone sales, with the 5S selling three times more units than the 5C. After the first day of release, 1% of all iPhones in the US were iPhone 5Ss, while 0.3% were iPhone 5Cs. Gene Munster of Piper Jaffray reported that the line at the Fifth Avenue Apple Store contained 1,417 people on release day, compared to 1,300 for the iPhone 4 in 2010, and 549 for the iPhone 3G in 2008 on their respective release days. This was the first time that Apple launched two models simultaneously. The first-day release in China also contributed to the record sales result.
During release, the iPhone was marketed as running "OS X". The name of the operating system was revealed as iPhone OS with the release of the iPhone SDK. The original iPhone supported three major versions of the operating system before it was discontinued: iPhone OS 1, 2, and 3. However, the full iPhone OS 3 feature set was not supported, and the last update the original iPhone received was iPhone OS 3.1.3
Six months after the release of the iPhone 5S, on March 25, 2014, Apple announced that sales of the iPhone brand had exceeded 500 million units. By May 2014, despite having been on the market for eight months, the iPhone 5S reportedly outsold the newly released Samsung Galaxy S5 by 40%, with 7 million iPhone 5S units versus 5 million Galaxy S5 units. The Galaxy S5's failure to oust the iPhone 5S from the top selling spot was a major setback for Samsung Mobile, as the preceding Samsung Galaxy SIII and Samsung Galaxy S4, in the first quarter of their releases, had outsold the iPhone 4S and iPhone 5 respectively.
When first released, the iPhone 6 and iPhone 6 Plus were supplied pre-loaded with iOS 8, while the iPhone 5S was supplied pre-loaded with iOS 7. Apps are able to take advantage of the increased screen size in the iPhone 6 and 6 Plus to display more information on-screen; for example, the Mail app uses a dual-pane layout similar to its iPad version when the device is in landscape mode on the iPhone 6 Plus. As it uses an identical aspect ratio, apps designed for the iPhone 5, iPhone 5C, and 5S can be upscaled for use on the iPhone 6 and 6 Plus. To improve the usability of the devices' larger screens, an additional "Reachability" gesture was added; double-tapping the Home button will slide the top half of the screen's contents down to the bottom half of the screen. This function allows users to reach buttons located near the top of the screen, such as a "Back" button in the top-left corner.
The iPhone 5C is a variant of the iPhone 5, with similar hardware specifications but a hard-coated polycarbonate shell instead of the aluminium of the original iPhone 5. The iPhone 5C was available in several color options, and shipped with iOS 7. The iPhone 5C was sold at a discounted price point in comparison to the 5S: unlike Apple's usual practice of lowering the price of the previous model upon release of a new version, the iPhone 5 was explicitly discontinued and replaced by the 5C. On September 9, 2014, the 16 and 32 GB iPhone 5C models were replaced by the 8 GB model with the announcement of the iPhone 6 and iPhone 6 Plus. On September 9, 2015, the 8 GB version was discontinued when the iPhone 6S was announced.
The iPhone 5S and 5C sold over nine million units in the first three days, which set a record for first weekend smartphone sales, with the 5S selling three times more units than iPhone 5C. After the first day of release, 1% of all iPhone in the US were iPhone 5S, while 0.3% were iPhone 5C.
The iPhone 5 is a smartphone that was designed and marketed by Apple Inc. It is the sixth generation of the iPhone succeeding the iPhone 4S and preceding the iPhone 5S and iPhone 5C. Formally unveiled as part of a press event on September 12, 2012, it was released on September 21, 2012. The iPhone 5 is the first iPhone to be announced in September and, setting a trend for subsequent iPhone releases, the first iPhone to be completely developed under the guidance of Tim Cook and the last iPhone to be overseen by Steve Jobs.
Apple began work on the first iPhone in 2005 and the first iPhone was released on June 29, 2007. The iPhone created such a sensation that a survey indicated six out of ten Americans were aware of its release. "Time" declared it "Invention of the Year" for 2007. The completed iPhone had multimedia capabilities and functioned as a quad-band touch screen smartphone. A year later, the iPhone 3G was released in July 2008 with three key features: support for GPS, 3G data and tri-band UMTS/HSDPA. In June 2009, the iPhone 3GS, whose improvements included voice control, a better camera, and a faster processor, was introduced by Phil Schiller. The iPhone 4 is thinner than previous models, has a five megapixel camera capable of recording video in 720p HD, and adds a secondary front-facing camera for video calls. A major feature of the iPhone 4S, introduced in October 2011, was Siri, a virtual assistant capable of voice recognition.
The iPhone 5S was discontinued on March 21, 2016, and succeeded by the iPhone SE, which continues the same form factor but features vastly upgraded internals similar to the flagship iPhone 6S. This was a break with Apple's product positioning trend (in North America and Western Europe), starting with iPhone 4S released in October 2011, which gave each newly released model one year as the flagship phone, then moving it to midrange for its second year of production, with the third and final year as the entry-level offering before discontinuation. While the iPhone 5S was expected to continue on sale until September 2016, replacing it and its A7 processor early meant that Apple "just reduced its long-term chip support window by a year" for iOS. In addition, a new iPhone launch was meant to stimulate demand, as sales of iPhone 6S and 6S Plus had not met expectations since their September 2015 release and the iPhone family was expected to suffer its first ever negative growth quarter in 2016.
Apple has released eleven generations of iPhone models, each accompanied by one of the eleven major releases of the iOS operating system. The original first-generation iPhone was a GSM phone and established design precedents, such as a button placement that has persisted throughout all releases and a screen size maintained for the next four iterations. The iPhone 3G added 3G network support, and was followed by the 3GS with improved hardware, the 4 with a metal chassis, higher display resolution and front-facing camera, and the 4S with improved hardware and the voice assistant Siri. The iPhone 5 featured a taller, 4-inch display and Apple's newly introduced Lightning connector. In 2013, Apple released the 5S with improved hardware and a fingerprint reader, and the lower-cost 5C, a version of the 5 with colored plastic casings instead of metal. They were followed by the larger iPhone 6, with models featuring displays. The iPhone 6S was introduced the following year, which featured hardware upgrades and support for pressure-sensitive touch inputs, as well as the SE—which featured hardware from the 6S but the smaller form factor of the 5S. In 2016, Apple unveiled the iPhone 7 and 7 Plus, which add water resistance, improved system and graphics performance, a new rear dual-camera setup on the Plus model, and new color options, while removing the 3.5 mm headphone jack found on previous models. The iPhone 8 and 8 Plus were released in 2017, adding a glass back and an improved screen and camera. The iPhone X was released alongside the 8 and 8 Plus, with its highlights being a near bezel-less design, an improved camera and a new facial recognition system, named Face ID, but having no home button, and therefore, no Touch ID. In September 2018, Apple again released 3 new iPhones, which are the iPhone XS, an upgraded version of the since discontinued iPhone X, iPhone XS Max, a larger variant with the series' biggest display and iPhone XR, a lower end version of the iPhone X.
On November 21, 2007, T-Mobile announced that due to litigation commenced against them by their competitor Vodafone, which resulted in a preliminary injunction preventing T-Mobile from locking the SIM card to T-Mobile in Germany, it will sell the phone "unlocked" and will offer iPhone without a T-Mobile contract for €999 (US$1,478) at its shops to customers in Germany until the court renders a decision.[129] By the end of November, Apple released another version of iPhone firmware, 1.1.2. This version does not have many new features but breaks unlocks. During Macworld '08, on January 15, Apple released the fifth version of iPhone firmware, 1.1.3; this version repairs loopholes used by "iPhone Hackers." The firmware, however, had been compromised prior to release and new security measures were quickly bypassed. On February 8, 2008, Geohot released the first full software unlock for the 1.1.2 & 1.1.3 OTB iPhones.
iPhoneography gained popularity with the constant improvement through generations of iPhone cameras. The first generation of iPhone was only equipped with a fixed-focus camera with no optical zoom or flash. As it evolved into the iPhone 3GS, the camera became more intelligent with autofocus, auto white balance and auto macro. The iPhone 4 was the first iPhone that could natively do high dynamic photography. The iPhone 4S and iPhone 5 were released with a panorama function available in the built-in camera app. The iPhone 6 and 6S further improved on functionality and performance, allowing more sophisticated manipulation and higher picture quality.
iPhone OS 2 is the second major release of the iOS mobile operating system developed by Apple Inc., being the successor to iPhone OS 1. It was the first release of iOS to support third-party applications via the App Store. iPhone OS 2.2.1 was the final version of iPhone OS 2. It was succeeded by iPhone OS 3 on June 17, 2009.
The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. It is the fourth generation iPhone, succeeding the 3GS and preceding the 4S. Following a number of notable leaks, the iPhone 4 was first unveiled on June 7, 2010, at Apple's Worldwide Developers Conference in San Francisco, and was released on June 24, 2010, in the United States, United Kingdom, France, Germany and Japan. The iPhone 4 introduced a new hardware design to the iPhone family, which Apple's CEO Steve Jobs touted as the thinnest smartphone in the world at the time; it consisted of a stainless steel frame which doubles as an antenna, with internal components situated between aluminosilicate glass. The iPhone 4 also introduced Apple's new high-resolution "Retina Display" with a pixel density of 326 pixels per inch while maintaining the same physical size and aspect ratio as its precursors. The iPhone 4 also introduced Apple's A4 system-on-chip, along with iOS 4—which notably introduced multitasking functionality and Apple's new FaceTime video chat service. The iPhone 4 was also the first iPhone to include a front-facing camera, and the first to be released in a version for CDMA networks, ending AT&T's period as the exclusive carrier of iPhone products in the United States.
The iPhone 6 and iPhone 6 Plus were officially unveiled during a press event at the Flint Center for Performing Arts in Cupertino, California on September 9, 2014 and released on September 19, 2014; pre-orders began on September 12, 2014, with the iPhone 6 starting at US$649 and the iPhone 6 Plus starting at US$749. In China, where the iPhone 5c and 5s were the first models in the iPhone series to be released in the country on the same day as their international launch, Apple notified local wireless carriers that it would be unable to release the iPhone 6 and iPhone 6 Plus on the 19th because there were "details which are not ready"; local media reported that the devices had not yet been approved by the Ministry of Industry and Information Technology, and earlier in the year, a news report by state broadcaster China Central Television alleged that iPhone devices were a threat to national security because iOS 7's "frequent locations" function could expose "state secrets."
The first three models of the iPhone (introduced in 2007) generally lagged behind the BlackBerry in sales, as RIM had major advantages in carrier and enterprise support; however, Apple continued gaining market share. In October 2008, Apple briefly passed RIM in quarterly sales when they announced they had sold 6.9 million iPhones to the 6.1 million sold by RIM, comparing partially overlapping quarters between the companies. Though Apple's iPhone sales declined to 4.3 million in the subsequent quarter and RIM's increased to 7.8 million, for some investors this indicated a sign of weakness. Apple's iPhone began to sell more phones quarterly than the BlackBerry in 2010, brought on by the release of the iPhone 4.
The iPhone 6 and 6 Plus were moved to the midrange spot in Apple's iPhone lineup when the iPhone 6S and 6S Plus were released in September 2015. The iPhone 6 and 6 Plus were discontinued in most markets on September 7, 2016 when Apple announced the iPhone 7 and iPhone 7 Plus. Their spot as the entry-level iPhone was replaced by the iPhone SE, which was released earlier on March 31, 2016. The iPhone 6 was relaunched with 32 GB of storage in Asian markets in February 2017 as a midrange/budget iPhone. It was later expanded to Europe, before hitting the US markets in May 2017, and Canada in July 2017.
iPhone OS 1 is the first major release of iOS, Apple's mobile operating system. iPhone OS 1.1.5 is the latest and the last version of Apple's iPhone OS 1. This version of iOS was the first iteration of the touch-centric mobile operating system. No official name was given on its initial release; Apple marketing literature simply stated that the iPhone runs a version of Apple's desktop operating system, macOS, then known as Mac OS X. On March 6, 2008, with the release of the iPhone software development kit (iPhone SDK), Apple named it "iPhone OS" (they later went on to rename it "iOS" on June 7, 2010). It was succeeded by iPhone OS 2 on July 11, 2008.
Unlike the first generation iPhone, the iPhone 3G must be activated in the store in most countries. This makes the iPhone 3G more difficult, but not impossible, to hack. The need for in-store activation, as well as the huge number of first-generation iPhone and iPod Touch users upgrading to iPhone OS 2.0, caused a worldwide overload of Apple's servers on July 11, 2008, the day on which both the iPhone 3G and iPhone OS 2.0 updates as well as MobileMe were released. After the update, devices were required to connect to Apple's servers to authenticate it, causing many devices to be temporarily unusable.
The iPhone Dev Team, Chronic Dev Team, and pod2g collaborated to release Absinthe in January 2012, a desktop-based tool to jailbreak the iPhone 4S for the first time and the iPad 2 for the second time, on iOS 5.0.1 for both devices and also iOS 5.0 for iPhone 4S. In May 2012 it released Absinthe 2.0, which can jailbreak iOS 5.1.1 untethered on all iPhone, iPad, and iPod touch models that support iOS 5.1.1, including jailbreaking the third-generation iPad for the first time. The hackers together called the evad3rs released an iOS 6.X jailbreak tool called "evasi0n" available for Linux, OS X, and Windows on Monday, February 4, 2013 at noon Eastern Standard Time. Due to the high volume of interest in downloading the jailbreak utility, the site initially gave anticipating users download errors. When Apple upgraded its software to iOS 6.1.3 it permanently patched out the evasi0n jailbreak. 
In April 2013, the latest versions of Sn0wbreeze was released, which added the support for tethered jailbreaking on A4 devices (i.e. devices "not" newer than the iPhone 4, iPad (1st generation), or iPod touch (4th generation)).
On December 28, 2017, amidst many complaints about older iPhone models slowing down when new ones are released, Apple released a communication to its customers on its website, acknowledging the effect that old batteries have on the iPhone's performance. The company offered $29 battery replacements as a solution.
Most reviewers recommended the iPhone 5S over the iPhone 5C which was released at the same time. The 5C retained almost the same hardware as the discontinued iPhone 5, while the iPhone 5S featured substantially improved performance/features thanks to its new 64-bit A7 processor, as well as extra storage space, all for a relatively small additional upfront cost over the iPhone 5C (US$650 versus US$550 in March 2014). This was especially the case when iOS 8 was released and both iPhone 5S and iPhone 5C were moved to the mid and low end of the iPhone range, respectively; the iPhone 5S still had 16 or 32 GB storage available while the iPhone 5C had to make do with 8 GB storage with only 4.9GB available to the user after installing iOS 8. Furthermore, the 5C's polycarbonate exterior received a mixed reception and was seen as a cost-cutting downgrade compared to the iPhone 5's aluminum/glass case; the 5S retained the latter design and looked even more premium due its additional gold finish.
The iPhone 6 and 6 Plus were discontinued on September 7, 2016, when Apple announced the iPhone 7 and iPhone 7 Plus, and the iPhone 6 and 6 Plus's spot as the entry-level iPhone has since been taken by the iPhone SE. As the iPhone SE has more powerful internal hardware than the midrange iPhone 6 (largely the same as the 6S) and had been released earlier on March 31, 2016, this created an unusual situation when it was sold alongside the iPhone 6 and 6 Plus until September 7 despite being marketed as a lower-tier iPhone.