Alright, we're done with "Operation"—who wants to play a little "I spy"? Compared to the regular 12 we see:

Two display cables instead of three

A miniaturized battery, Taptic Engine, and loudspeaker

Some migrated display silicon

The upper sensor assembly, containing the speaker, Face ID, and sensors also got a rework to fit its slightly smaller home.

This smaller non-pro iPhone punches well above its weight in the display department. It's got a 5.4 inch 2340 x 1080 OLED screen, topped with Apple's Ceramic Shield glass.