“In practice, the EyeSight display is so dim and low-resolution that reviewers say it’s hard to see much on it.”
Apple’s signature feature is a lenticular OLED behind a curved glass front that shows a blurry video of your eyes. Break that glass and Apple charges $799 to replace it. The whole rig weighs over a kilogram with the battery, and most of it sits on your face. Apple built a $799 repair bill to display a feature nobody can see.