New images of Meta's upcoming mixed reality headset, called Project Phoenix, have been revealed ahead of the company's Connect event on September 23. These images were discovered in a firmware package for the HorizonOS Prescription Lens app, suggesting that the device represents a new design for Meta, distinct from its current Quest-branded headsets. The leaked visuals show a slim, glasses-like frame with lenses built into it, similar to devices such as Xreal's Aura headset. One of the leaked images shows a cable connected to the headset, which supports earlier speculation that Project Phoenix might use a tethered connection to a separate device known as a puck. The HorizonOS Prescription Lens app, which has since been removed, was designed for users who need prescription lenses for the headset. Although the leaked images give a detailed look at the lightweight design, the front of the device is not visible, leaving some features unknown. Some analysts believe the front may include a camera system for hand-tracking controls, similar to those found in the Xreal Aura. Meta has not officially commented on the leak, and it is still unclear whether the company will officially unveil Project Phoenix at the Connect event or just hint at its existence. Originally, the device was expected to launch in the first half of 2027, but its release timeline remains uncertain. The Connect event has historically focused on smart glasses, and it is possible that Meta may still present major updates on its smart glasses project this year, even if Project Phoenix is not officially revealed.