China smartphone sales reached 455.9 million units in 2017, an increase of 1.1%, according to data from Analysys. It forecasts the total smartphone sales will decrease to 437.99 million units in 2020.
China smartphone market declined 15.7% year-over-year (YoY) in Q4 2017 and 4.9% for the whole of 2017 according to IDC.