Feng Yufei. Feng Yufei, the person in charge of the iQOO brand in Tianqiao District, Jinan City, once revealed that vivo had the idea of ??launching a sub-brand as early as 2010, and registered the iQOO trademark in October 2010. Released as of March 1, 2019, the revised phone uses Qualcomm Snapdragon 855 processor and supports liquid cooling, which is very good.