Global handset shipments declined by nearly 4% annually in Q1 2019. Just two of the top five vendors showed positive annual growth in the first quarter of the year. Developed markets, particularly North America, are seeing lengthening replacement cycles. These mature and saturated markets where handset penetration nears 100% and in some cases exceeds that have little room left 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 for Q1 2019. Historical data by region and quarter from 2004 to Q1 2019 are included.