Apple unveiled 3 new iPhones on Sept. 12, 2017 at a keynote event in the brand-new Steve Jobs Theater, with the iPhone X going on sale at 3:01 a.m. ET on Oct. 27 and available in stores on Nov. 3. Since its launch in 2007, the iPhone has changed the way people use their phones, with different models and innovations now taken for granted.
Here's a look at how the device has evolved over the years.
Introduction of the iPhone
January 2007: Apple owner and founder Steve Jobs introduces the iPhone on Jan. 9, 2007, during a Macworld convention in San Francisco. The device was designed to work as a phone, an iPod and an internet device. Jobs died in October 2011.
First iPhone release date
June 2007: The iPhone went on sale on Friday, June 29, 2007, with a limit of 2 per customer.
iPhone first goes on sale
June 2007: The demand for the iPhone created camping lines outside Apple stores across the country, like this line on June 28, 2007, in Santa Monica, Calif.
First iPhone price
June 2007: The first iPhones were only available through AT&T, and cost $499 to $599 plus a two-year service contract when they first went on sale.
1 million sold
September 2007: Apple announces that a million iPhones sold in 74 days.
iPhone in Europe
November 2007: Months after its debut in the United States, the iPhone is released in the United Kingdom and Germany.
iPhone 3G announced
June 2008: Apple founder and owner Steve Jobs announces the next generation of the iPhone, the iPhone 3G, with faster networking than the original model. Jobs died in October 2011.
iPhone 3G pricing
June 2008: The cost for the iPhone 3G was less than the original model, $199 for the 8 gigabyte model with a service contract. The original had cost $599.
July 2008: The iPhone 3G goes on sale, and introduces the App Store, where users can get and purchase programs for the iPhone.
1 million iPhone 3Gs sold first weekend
July 2008: In its first weekend on sale, a million iPhone 3Gs sold, and there were 10 million App Store downloads.
100 million App Store downloads
September 2008: Worldwide, Apple says there were 100 million App Store downloads, with 3,000 different Apps available.
iPhone OS 3.0
March 2009: Apple introduces iPhone's new operating system, 3.0, which allows cutting and pasting text, parental controls and stereo Bluetooth.
June 2009: The iPhone 3GS is introduced, with better battery life, camera quality and speed. It sells a million in its first weekend.
iPhone OS 4
April 2010: Apple announces the introduction of the new iPhone operating system, OS 4.
June 2010: Steve Jobs introduces the iPhone 4, introducing several improvements, including the teleconferencing function, FaceTime, and a retina display. Jobs died in October 2011.
iPhone 4 on sale
June 2010: The iPhone 4 went on sale on June 24, 2010, at a cost of $199 for a 16-gigabyte model and $299 for a 32-gigabyte one. It sold 1.7 million in its first weekend on sale.
Verizon Wireless adds iPhone
January 2011: Verizon and Apple announce the iPhone would be available on Verizon Wireless' network. The phone had been exclusively on AT&T in the United States until this point.
iPhone 4GS introduced
October 2011: Apple introduces the iPhone 4GS, which featured an enhanced camera, introduced the iCloud, and also was the first interaction many people had with the voice assistant Siri.
iPhone 4GS sales
October 2011: The latest version of the iPhone was a success, as the 4GS sold 1 million in just 24 hours, a record for the series.
September 2012: Apple introduces the iPhone 5, which has a thinner look, as well as the new Lightning connector used to charge the device.
T-Mobile adds iPhone
April 2013: T-Mobile adds the iPhone to its lineup of phones, as most major U.S. carriers began offering the Apple product.
iPhone 5C, iPhone 5S introduced
Sept. 2013: Apple announces the iPhone 5C and iPhone 5S, with the C models featuring colorful shells, while the 5S introduced the Touch ID system. Both ran on the new IOS 7.
iPhone 5C, iPhone 5S sales
September 2013: Apple sells 9 million iPhone 5Cs and 5Ss in its first three days on sale.
September 2014: The iPhone 6 is introduced, along with the larger-sized iPhone 6 Plus. It also featured faster speed and mobile payment options.
iPhone 6 sales
September 2014: More than 4 million iPhone 6s are reserved in just 24 hours in a presale period for the new model, called the best in iPhone history. Some 10 million are sold in the product's first weekend on the market.
September 2015: The iPhone 6S is introduced, featuring 3-D Touch and a force-sensitive touch-screen. The 6S and 6S Plus sold 13 million in their first weekend.
September 2016: The iPhone 7 is introduced, featuring a change in the phone's headphone system, as well as an improved camera.
iPhone 8, iPhone 8 Plus
September 2017: Apple unveils the iPhone 8 and iPhone 8 Plus, which introduces wireless charging as well as an improved camera.
September 2017: Apple introduces the iPhone X, which includes Face ID -- unlocking the phone with facial recognition software -- as well as animated emojis or animojis. The phone is also the most expensive iPhone to date, starting at $999.