Smith Collection/gado/Getty Images Turning pages on a Kindle is as simple as tapping or swiping on the screen, but previous versions of Amazon's popular e-book reader came with physical buttons that served the same purpose. The idea behind page-turn buttons was straightforward. You could press the button to turn a page regardless of how you held the device, making physical buttons a convenient choice for situations where one-handed use matters, like reading on your side in bed. But Amazon removed page-turn buttons in 2024 when it discontinued the Kindle Oasis , deciding to offer buyers touch-only Kindle options. The move isn't exactly a surprise in a world where touch interfaces are everywhere. Smartphones and tablets feature touch-first interfaces, and most Windows laptops come with touch screens. We also use touch displays in public places, like placing a fast-food order or buying transit tickets from a machine.…