Determining whether someone is wearing smart glasses depends entirely on the specific design architecture of the eyewear. Bulky industrial models equipped with prominent prism displays, external cameras, heavy frames, and wired battery packs are immediately noticeable. However, modern consumer-oriented smart glasses are engineered to mimic traditional prescription frames seamlessly, concealing micro-displays within slim arms and hiding tiny camera lenses within the rim, making it exceptionally difficult for casual observers to detect them.