Apple plans to sell its first smart glasses in 2027, with a possible unveiling at the end of this year, according to Bloomberg’s Mark Gurman.

Gurman has been reporting steadily on the evolution of the company’s smart glasses strategy, but now he has more details about how they’ll look — he said Apple is testing four designs, and could ultimately launch with some or all of them.

Those designs reportedly include a large rectangular frame, a slimmer rectangular frame (similar to the glasses worn by CEO Tim Cook), a larger oval or circular frame, and a smaller oval or circular frame. Apple is also considering different colors including black, ocean blue, and light brown.

In some ways, these glasses are a step back from an ambitious plan that once called for Apple to launch a variety of mixed and augmented reality devices — a plan that already stumbled with product delays and the lackluster reception of the Vision Pro.

These glasses, meanwhile, sound closer to the Meta’s Ray-Ban glasses. They won’t have any displays, but will allow users to take photos and videos (Apple is reportedly oval camera lenses), answer phone calls, play music, and interact with the long-promised Siri upgrade.