The Oculus Quest is a virtual reality headset developed by Reality Labs, a division of Meta Platforms (formerly Facebook Inc.), released on May 21, 2019. Similar to its predecessor, Oculus Go, it is a standalone device that can run games and software wirelessly under an Android-based operating system. It supports positional tracking with six degrees of freedom, using internal sensors and an array of cameras in the front of the headset rather than external sensors. The cameras are also used as part of the safety feature "Passthrough", which shows a view from the cameras when the user exits their designated boundary area. A later software update added "Oculus Link", a feature that allows the Quest to be connected to a computer via USB, enabling use with Oculus Rift-compatible software and games. The Oculus Quest received praise for its price and convenience, and for having improved graphical fidelity and tracking over Oculus Go, but was panned for its front-heavy build and downgraded graphics quality over PC-based VR games. At launch, it also faced criticism for being limited to software available on the Oculus Store, and not having backwards compatibility with Oculus Go software. The later introduction of Oculus Link led to reappraisals of the Quest, with critics praising the device's increased flexibility, and indicating that devices like the Quest would likely supplant the PC-only Rift headsets moving forward. A successor, the Meta Quest 2, was released in 2020.