According to cinno research, in January, the sales volume of smart phones in the Chinese market was about 30.87 million, a year-on-year increase of 0.4% and a month on month increase of 38.6%. IPhone 13 series In terms of mobile phone manufacturers, oppo ranked first in domestic smartphone sales, with a month on month increase of 42.6% and a year-on-year decrease of 21.1%; Vivo sales ranked second, with a month on month increase of 55.8% and a year-on-year decrease of 13.2%; Glory ranked thir...