iSuppli estimated that each first-generation iPad 16 GB Wi-Fi version costs US$259.60 to manufacture, a total that excludes research, development, licensing, royalty and patent costs. Apple does not disclose the makers of iPad components, but teardown reports and analysis from industry insiders indicate that various parts and their suppliers include:
The iPad is assembled by Foxconn, which also manufactures Apple's iPod, iPhone and Mac Mini, in its largest plant in Shenzhen, China, and by Pegatron in Shanghai, China. In April 2011, Foxconn announced that it would be moving production of the iPad and other Apple products to Brazil where it could begin production before the end of 2011.
iPad is a line of tablet computers designed, developed and marketed by Apple Inc., which run the iOS and iPadOS mobile operating systems. The first iPad was released on April 3, 2010; the most recent iPad models are the seventh-generation iPad, released on September 25, 2019; the fifth-generation iPad mini, released on March 18, 2019; the third-generation iPad Air, released on March 18, 2019; and the 11 in and third-generation 12.9 in iPad Pro, released on November 7, 2018.
The iPad comes with several applications, including Safari, Mail, Photos, Video, iPod, iTunes, App Store, iBooks, Maps, Notes, Calendar, and Contacts. Several are improved versions of applications developed for the iPhone or Mac. The apps currently missing are the weather, calculator, and health apps.
The iPad is able to support many music creation applications in addition to the iTunes music playback software. These include sound samplers, guitar and voice effects processors, sequencers for synthesized sounds and sampled loops, virtual synthesizers and drum machines, theremin-style and other touch responsive instruments, drum pads and many more. Gorillaz's 2010 album, The Fall, was created almost exclusively using the iPad by Damon Albarn while on tour with the band. The music video for Luna Sea's 2012 single, "Rouge", was filmed entirely on an iPad.
The second generation iPad introduced a third tier of models with CDMA support for Verizon Wireless in the United States, available separately from the AT&T capable version.
Jobs unveiled the iPad 2 at a press conference on March 2, 2011. About 33% thinner than its predecessor and 15% lighter, the iPad 2 has a better processor, a dual core Apple A5 that Apple says is twice as fast as its predecessor for CPU operations and up to nine times as fast for GPU operations. The iPad 2 includes front and back cameras that support the FaceTime videophone application, as well as a three-axis gyroscope. It retained the original's 10‑hour battery life and had a similar pricing scheme.
In 2013, Gianna Chien (aged 14) presented to more than 8,000 doctors at the Heart Rhythm Society meeting that the Apple iPad 2 can, in some cases, interfere with life-saving heart devices (pacemakers) because of the magnets inside. The iPad User Guide advised pacemaker users to keep iPads at least 6 in away from the pacemaker. A study in 2014 found that the iPad 2 could cause electromagnetic interference (EMI) in implantable cardioverter defibrillators.
The media also praised the quantity of applications, as well as the bookstore and other media applications. In contrast they criticized the iPad for being a closed system and mentioned that the iPad faces competition from Android-based tablets, that outsold iPads in 2013, surpassing iPads in the second quarter of 2013, and have overtaken iPad's installed base, and has lost majority of web browsing to Android, by StatCounter estimates, in South America, Africa, most of Asia – many large countries there and in Eastern Europe. The Independent criticized the iPad for not being as readable in bright light as paper but praised it for being able to store large quantities of books. After its UK release, The Daily Telegraph said the iPad's lack of Adobe Flash support was "annoying."
On October 22, 2013, Apple introduced the iPad Air and the iPad Mini with Retina Display, both featuring a new 64-bit Apple A7 processor.
Since its launch, iPad users have downloaded over three billion apps. The total number of App Store downloads,, is over 100 billion.
On October 23, 2012, Apple's fourth-generation iPad came out, marketed as the "iPad with Retina display". It added the upgraded A6X processor and replaced the traditional 30-pin dock connector with the all-digital Lightning connector. The iPad Mini was also introduced. It featured a reduced 7.9-inch display and much of the same internal specifications as the iPad 2.
The display responds to other sensors: an ambient light sensor to adjust screen brightness and a 3-axis accelerometer to sense iPad orientation and switch between portrait and landscape modes. Unlike the iPhone and iPod Touch's built-in applications, which work in three orientations (portrait, landscape-left and landscape-right), the iPad's built-in applications support screen rotation in all four orientations, including upside-down. Consequently, the device has no intrinsic "native" orientation; only the relative position of the home button changes.
Initially, the iPad was only available to order at the Apple Store, but has since become available for purchase through retailers including Amazon, Walmart, and network operators. The iPad was launched in countries including Australia, Canada, France, Germany, Japan and the United Kingdom on May 28. Online pre-orders in those countries began on May 10. Apple released the iPad in Hong Kong, Ireland, Mexico, New Zealand and Singapore on July 23, 2010. Israel briefly prohibited importation of the iPad because of concerns that its Wi-Fi might interfere with other devices. On September 17, 2010, the iPad was officially launched in China.
In the healthcare field, iPads and iPhones have been used to help hospitals manage their supply chain. For example, Novation, a healthcare contracting services company, developed VHA PriceLynx (based on the mobile application platform of business intelligence software vendor MicroStrategy), a business intelligence app to help health care organizations manage its purchasing procedures more efficiently and save money for hospitals. Guillermo Ramas of Novation states, "Doctors won't walk around a hospital with a laptop. With an iPad it's perfect to walk around the hospital with as long as they have the information they need."
iPad tablets still have a wide margin globally on second most used Android tablets. The market share, however, differs widely by regions; and the iPad has lost market share globally, every year since 2012 (when StatCounter started tracking tablets separately).
The first generation iPad had no camera; the iPad 2 has a front VGA camera and a rear-facing 720p camera, both capable of still images (but these are only taken at a low quality 0.3 megapixels) and 30fps video. The rear-facing camera has a 5× digital zoom for still images only. Both shoot photo and video in a 4:3 fullscreen aspect ratio, unlike the iPhone 4, which shoots in a 16:9 widescreen aspect ratio. Unlike the iPhone, the iPad does not support tap to focus, but does allow a tap to set auto exposure. The cameras allow FaceTime video messaging with iPhone 4, fourth generation iPod Touch, and Snow Leopard, Lion, and Mountain Lion Macs.
In September 2015, the iPad Pro was announced, which included a 12.9-inch screen, and a 9.7-inch version was announced in March 2016, with the addition of 256 GB option for both iPad Pro models.
The layout of the music library is similar to an iPod or current Symbian S60 phones. The iPad can sort its media library by songs, artists, albums, videos, playlists, genres, composers, podcasts, audiobooks, and compilations. Options are always presented alphabetically, except in playlists, which retain their order from iTunes. The iPhone uses a large font that allows users plenty of room to touch their selection.
The successor to the iPad 2 was unveiled on March 7, 2012, by Apple CEO Tim Cook at the Yerba Buena Center for the Arts. The new iPad contained a new dual core A5X processor with quad-core graphics, and a Retina Display with a resolution of 2,048 by 1,536 pixels, more than 50 percent more pixels than a standard 1,920 by 1,080 high definition TV screen. A brief controversy erupted when it was revealed that the LTE advertised did not work in some countries.