The Front

The first iPhone re-imagined mobile computing devices in various ways, but its most important innovation was its touch screen. At the time, smartphones on the market often featured keyboards with keys so tiny you had to squint to see them, and styluses to interact with the screen.

“Who wants a stylus?” Jobs asked disdainfully as he announced the first iPhone. “You have to get ‘em, put ‘em away, you lose ‘em. Yuck! Nobody wants a stylus. So let’s not use a stylus.”

The iPhone featured a multi-touch interface that allowed users to control the device with a tap, flick or pinch, eliminating the need for a stylus and removing the keyboard to make more room for the screen.

By today’s standards, the early iPhone’s screen resolution was limited. Over time, the screen has continued to increase in both size and sharpness. The new iPhone X is 5.8 inches long and almost all screen.