Not all smart glasses look alike, and not all models have cameras. The vast majority of camera glasses currently available are produced by Meta. The easiest way to identify a pair is by locating the indicator light -- a small LED bulb that turns on when the wearer is taking a picture or video. According to CNET editor and wearable tech expert Scott Stein, "Each pair of smart glasses has its own type of indicator. And many smart glasses do different things. We don't have a clear mental map of what to look for. That's a big part of the problem." Meta Ray-Bans have been around since 2021. (They l