The glasses look a bit clunkier, but when you put them on, you can see an array of rainbow lights that culminate in a 3D display. I’m looking at a picture of nature, and there’s actual depth.

The $299 Meta Ray-Ban Smart Glasses are a significant update, with much-improved photo, video, and audio quality. It sets a new standard for smart glasses, but privacy remains a concern.

Prioritizing aesthetics and subtlety, the more successful smart glasses — like the Ray-Ban Meta Smart Glasses — are no longer computers on the face, but regular glasses with a speaker, a ...