The iPhone is a line of smartphones designed and marketed by Apple Inc. The first iPhone was unveiled by Steve Jobs, then CEO of Apple, on January 9, 2007, and released on June 29, 2007.


The iPhone runs the iOS operating system, and as of 2021, there have been 14 versions of iOS released. The user interface is built around the device’s multi-touch screen, including a virtual keyboard. The iPhone has Wi-Fi and can connect to cellular networks. An iPhone can take photos, play music, send and receive emails, browse the web, send and receive text messages, record notes, perform mathematical calculations, and receive visual voicemail. Other functions, such as video games, reference works, and social networking, can be enabled by downloading mobile apps. As of 2021, the App Store, which is a digital application distribution platform, has more than 2.2 million applications available for the iPhone.

iPhone 3G, 3GS, 4, 4S, 5, 5S, 6, 6S – GSM


The original 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 iPhone 3GS with improved hardware, the iPhone 4 with a metal chassis, higher display resolution, and front-facing camera, and the iPhone 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 iPhone 5S with improved hardware and a fingerprint reader, and the lower-cost iPhone 5C, a version of the 5 with colored plastic casings instead of metal. They were followed by the larger iPhone 6, with models featuring 4.7-and-5.5-inch (120 and 140 mm) 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.

iPhone 7, 7 Plus, 8, and 8 Plus


In 2016, Apple unveiled the iPhone 7 and 7 Plus, which add water resistance, an 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.

iPhone XR, XS, 11, 11 Pro Max, 12, SE

In 2018, Apple released the iPhone XR, a lower-end version of the X, and the iPhone XS and XS Max, which added a better camera and an improved display. The iPhone 11, 11 Pro, and 11 Pro Max were released in 2019 and added a new triple-camera system and the A13 Bionic chip, and the iPhone SE (2020) was released in April 2020 with improved hardware and a design similar to the iPhone 8. In October 2020, the iPhone 12, 12 Mini, 12 Pro, and 12 Pro Max were announced, which featured a new design, 5G connectivity, a ProMotion display on the Pro models, and a LiDAR scanner on the Pro Max.

What Makes the iPhone so Popular?

There are several reasons why the iPhone has become so popular over the years:

  1. Apple’s marketing: Apple is known for its innovative and effective marketing campaigns, which have helped to create a strong brand and loyal customer base for the iPhone.
  2. High-quality design: iPhones are known for their high-quality design and build, which have helped to establish the brand as a leader in the smartphone market.
  3. Powerful hardware and software: iPhones use powerful processors and run Apple’s proprietary iOS operating system, which is known for its smooth performance and user-friendly interface.
  4. Wide range of features: iPhones offer a wide range of features and capabilities, including a camera, music player, mobile internet browser, and access to a vast selection of apps through the App Store.
  5. Strong ecosystem: Apple has created a strong ecosystem around the iPhone, with a range of products and services that work seamlessly together, such as the Apple Watch, Mac computers, and iCloud.
  6. User satisfaction: The iPhone has consistently ranked highly in customer satisfaction surveys, with users praising its performance, design, and ease of use.

iPhone Has Over 200 Patents

Since its release in 2007, the iPhone has inspired over 200 patents filed by Apple, many of which have greatly enhanced the ways in which publishers and developers can interact with users, such as through Force Touch and over-the-air updates.

The iPhone Has Changed How We Spend Our Time

It is difficult to imagine what mobile device users would be like today without the influence of the iPhone. Prior to the release of the iPhone in 2007, mobile device usage was primarily limited to phone calls and texting.

The iPhone has revolutionized the way we interact with the world, enabling us to access email, social media, games, and productivity apps on the go. A quick look around in a public place demonstrates the ubiquity of the iPhone and its central role in facilitating communication, work, and entertainment for many people.


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