Samsung is the absolute leader in VR headset production in 2016. The company sold over 782,000 units, compared with 375,000 for Sony's PlayStation VR that comes in second. The top 5 in terms of sales numbers is completed by Google Daydream View - 170,000 units, HTC Vive - 95,000 and Oculus Rift - 64,000. Analysts from SuperData Research stated that the aggregate VR business revenue was $4.9 billion and will reach $37.7 billion ($17.8B of them hardware and $19.9B software) in the next three years. Numbers should not be surprising anyone. Samsung sold more than the next four companies...
Source: http://www.gsmarena.com/samsung_sold_782000_gear_vr_units_in_q1_2017-news-24956.php