be phased out in 2023, with support for certain social features ending in March 2023, and updates limited to maintenance and security patches until 2024. Specifications The Oculus Quest uses a Qualcomm Snapdragon 835 system-on-chip (SoC) with 4 GB of RAM. Three of the four 2.3 GHz CPU cores of the chip are reserved for software, while the remaining core and its four lower-power cores are reserved for motion tracking and other background functions. It runs an Android-based operating system, with modifications to enhance performance in VR applications. A smartphone running the Oculus app is required in order to conduct first-time setup. A diamond Pentile OLED display is used for each eye, with an individual resolution of 1440 × 1600 and a refresh rate of 72 Hz. The headset uses the "next generation" lens technology originally introduced in Oculus Go, which helps to enlarge the sweet spot of the lens. Visual artifacts such as God rays are less prominent but still visible in scenes with high contrast. It also features physical interpupillary distance (IPD) adjustment. Tracking Unlike the Oculus Go, which used a limited handheld remote that only supported limited motion tracking, the Quest supports positional tracking with six degrees of freedom (compared to the Go's three). Rather than use external sensor cameras in the play area to spatially track the headset and controllers (as was the case with the original Oculus Rift CV1), Oculus Quest utilizes an "inside-out" tracking system known as "Oculus Insight". Based on the concept of simultaneous localization and mapping (SLAM), infrared diodes on the Oculus Touch controllers are tracked via four wide-angle cameras built into the front of the headset. This is combined with accelerometer input from the controllers and headset, as well as AI algorithms to predict the path of motion when the controllers are outside of the cameras' field of view. The cameras are also used as part of a safety feature known as "Passthrough", which displays a grayscale view from the cameras when the player exits their defined playing area. At Oculus Connect 6, it was announced that the feature would be upgraded to "Passthrough+" as on the Oculus Rift S (which also uses Insight), making it stereoscopic and stereo-correct. A "Passthrough on Demand" feature was added in Quest system software version 15, allowing the user to quickly access the Passthrough view by double-tapping the left or right side of the headset.