The iPhone 16 Pro and Pro Max have new screen sizes. The iPhone 16 Pro features a 6.3-inch display, while the iPhone 16 Pro Max display is 6.9-inches. Previously the displays were 6.1-inch or 6.7-inch, the iPhone 16 and 16 Plus have the same 6.1-inch or 6.7-inch displays as previously.
To make the screen size change possible without changing the dimensions Apple has reduced the bezels. The iPhone 16 Pro now has the “Thinnest bezels on any Apple product”.