Camera smart glasses are not just another wearable purchase. The main question is not whether the camera exists, but whether the way it records fits where you will actually use it.
Check whether recording indicators are visible, whether capture can be controlled quickly, and whether the app or phone connection is required for the features you care about.
Think about social settings before buying. Workplaces, schools, gyms, transport, venues and family settings may all create different expectations. This is not legal advice, but the social-fit check is part of the buying decision.
Also check storage, charging, upload workflow, replacement lenses and returns. A good-looking pair can still be wrong if the support route or current merchant terms do not match your use case.