Global smartphone shipments grew +9% YoY in Q4 2016. Android gained share at the expense of all other platforms, due to solid performances in China and other emerging markets. All other platforms lost traction, particularly Microsoft and BlackBerry. Our extensive report contains global smartphone shipments by operating system by quarter from 2009 to Q4 2016. The report is valuable for mobile stakeholders who want to size the huge market for smartphones and operating system market share.