Tapinator - The first-generation iPhone was released on June 29, 2007, and multiple new hardware iterations with new iOS releases have been released since. https://en.wikipedia.org/wiki/IPhone | Facebook
List of iOS and iPadOS devices - Wikipedia
iPod touch (5th generation) - The iPhone Wiki
List of iPhones - The iPhone Wiki
iPhone - Wikipedia
List of iOS and iPadOS devices - Wikipedia
iPhone - Wikipedia
Comparing the startup speed and shutdown speed of successive iPhone, this is - GIGAZINE
iPhone | Apple Wiki | Fandom
The Evolution of Iphone timeline | Timetoast timelines