Global handset shipments improved by 3% annually in Q3 2017. Following a weaker first half for 2017, global handset shipments are showing improvements, driven by YoY growth in developing markets. Developed markets, in particular North America, are showing lackluster growth on an annualized basis, due in large part to mature and saturated markets where handset penetration nears 100% and in some cases exceeds that, leaving little room for new growth in handset shipments. This report details quarterly handset marketshare for the world's top 30 vendors in North America, Central & Latin America, Western Europe, Central & Eastern Europe, Africa Middle East and Asia Pacific. Historical data by quarter from 2004 to Q3 2017 are included.