The current Ray-Ban Meta glasses don’t display anything on the lenses, meaning wearers rely on audio feedback or Meta’s phone app. That could put them at a disadvantage compared to upcoming glasses like those from Google, which have a display for showing information along with providing verbal answers.

“That’s going to be another challenge,” said Guillaume Chansin, an analyst with market research firm Counterpoint Research. “Like if you want to replace a smartphone, can you really do that without having some kind of visual feedback?