TL;DR: Meta is beta testing advanced AI features on Ray-Ban Meta Smart Glasses. Beta testers in the US can opt-in for early access to features like camera aided visual translation/summarization of text and asking any questions related to the image or topic within a certain period of time. Meta plans to make it available to everyone next year.
And they sell the data from them as a secondary revenue stream. Not just Ring doorbells, too: IoT security cameras are all over Shodan.