Oculus Quest 2 was released in October 2020, so that's like 2 months worth of sales figure.
SuperData XR Quarterly Update — SuperData, a Nielsen Company
SuperData now projects XR hardware and consumer software will earn $6.3B in 2020. The impact of COVID-19 has been felt throughout the industry, though certain sectors are poised to experience rebounds as early as the second half of this year.
www.superdataresearch.com
Over 1M Oculus Quest 2 headsets were sold in Q4, breaking records. The Quest 2 sold more units in a single quarter than any VR device that is not powered by a smartphone. (The Samsung Gear VR holds the overall record and sold 1.4M units in Q4 2016.) The Quest 2 benefitted from a lower price than its predecessor and also from pent-up demand among those interested in joining the VR audience. The original Quest was sold out during much of 2020 due to the impact of COVID-19 on supply chains. The Quest 2 was also the first Oculus headset to launch around the holiday season, so its addressable audience included gift givers in addition to VR enthusiasts.
Standalone devices like the Quest 2 are set to account for 87% of new VR headset sales* in 2021. Since the Quest 2 can be used to play PC VR games, a significant share of PC gamers are expected to opt for the Quest and similar "hybrid devices," when purchasing a VR headset in the future. The most devoted enthusiasts will likely continue to favor high-end devices including the Valve Index and HP Reverb G2.
*Figures in this paragraph do not include "light mobile" VR headsets like Google Cardboard and similar devices.