China smartphone shipments fell a hefty -14% YoY in Q1 2018. Lengthening replacement cycles, overstocked inventory, OEM consolidation and economic headwinds caused the slowdown. Xiaomi and Apple delivered a strong performance, while Huawei, Vivo and others struggled. Our extensive report contains handset and smartphone shipments and marketshare by dozens of vendors and operating systems by quarter in China from Q1 2009 to Q1 2018. A FORECAST by smartphone vendor for Q2 2018 is also included.