iPhone History: Every Generation in Timeline Order 2007-2023 (historycooperative.org)
Display resolution - Wikipedia
timeline of iPhone innovations - Search (bing.com)
History of mobile phones - Wikipedia
The history of cell phones: A decade-by-decade timeline (androidauthority.com)
The Evolution Of Mobile Phones: 1973 To 2019 - Flaunt Digital
History Of The Cell Phone (1973 to 2023) - Practically Networked
The History of Every iPhone Model from 2007–2022 (iphonelife.com)
iPhone - Wikipedia
4K vs. UHD: What's the Difference? | Extremetech
The iPhone was first released on June 29, 200712. Here are some notable milestones in the history of iPhone2:
July 2008: The first phone to beat the iPhone.
June 2010: The iPhone 4 is released, with the slogan "This changes everything."
October 2011: The iPhone 4S is released, with the introduction of Siri and the passing of Steve Jobs.
September 2012: The iPhone 5 is released.
September 2013: The iPhone 5S & 5C are released.
September 2014: The iPhone 6 & 6 Plus are released.
September 2017: The iPhone X is released, with the slogan "Say hello to the future."
September 2018: The iPhone XS, XS Max, and XR are released, with the slogan "Welcome to the big screens."
October 2020: The iPhone 12 is released, with the slogan "Hello 5G."2
Steve Jobs envisioned an Apple touchscreen product that the user could interact with directly with their fingers rather than using a stylus. The first iPhone was an 8 GB model