Augmented Screens, Not Augmented Reality: Why Most Smart Glasses Displays Fail the Spatial Computing Test

This paper applies the categorical test for genuine spatial computing to consumer smart glasses and argues that most current display-equipped models are augmented screens, showing text and icons fixed to the wearer's head rather than content positioned in the three-dimensional space around them. The paper separates two products the press often treats as one: audio-only smart glasses, the best-selling category, which carry a camera, a speaker, and a voice assistant with no display and no augmented reality claim, and a smaller category of display-equipped glasses marketed using augmented reality language. It describes that display-equipped category reaching mainstream retail shelves in late 2025, built around a small waveguide display with a resolution near 600 by 600 pixels, a field of view near 20 degrees, and brightness reaching several thousand nits. Those figures describe picture quality. They say nothing about where the picture actually sits. Content on these devices moves with the wearer's head the way a phone's lock screen moves with the phone, the paper argues, never holding a position in the room the way world-anchoring or occlusion would require. It distinguishes this failure of ambition from the failure the third paper in this series finds in a heavier, far more capable headset. A third, heavier tier of glasses combines tracking and spatial mapping in pursuit of the same goal, but is still limited today by battery life, weight, and a thin content library, positioned for now toward enterprise and developer use rather than everyday wear. This is the fourth paper in the five-part series.