I call this category “invisible smart glasses,” because the wearable computing elements are invisible. This ability to pass as normal glasses is, to me, the ultimate feature.

I just went hands-on with the Halliday smart glasses with an invisible display — and I’m shocked. Hands-on. By Mark Spoonauer published 6 January 2025 ...

The layer of gold absorbs invisible infrared light from the sun, causing the glass it’s applied to to heat up by up to eight degrees Celsius, preventing moisture in the air from condensing on it.