As with the iPhone X, the new phone has a screen that runs from edge to edge, an effort to maximize the display without making the phone too awkward to hold. The screen needs no backlight, so black would appear as truly black rather than simply dark.
This even-bigger iPhone represents Apple's attempt to feed consumers' appetite for increasingly larger screens as they rely on smartphones to watch and record video, as well as take photos wherever they are.
The iPhone X also got rid of the home button to make room for more screen and introduced facial-recognition technology to unlock the device.
By making more expensive iPhones, Apple has been able to boost its profits despite waning demand as people upgrade phones less frequently. IPhones fetched an average price of $724 during the April-June period, a nearly 20 per cent increase from a year earlier.
Apple also showed off a cheaper iPhone, called the iPhone XR. It is made of aluminum, and smaller than the iPhone 8 Plus in physical size, but has a bigger screen.