Global smartphone shipments increased by 38% annually in Q4 2012. This report, available to the clients of our Country Handset Share Tracker service, tracks the world's 11 leading smartphone vendors' shipments and marketshare across 15 major countries worldwide in Q1-Q4 2012. The 15 countries tracked account for 80% of total global smartphone volumes. Countries covered are: Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Russia, South Africa, South Korea, Spain, UK, and the United States. This report is a valuable tool for any mobile stakeholder that wants to track smartphone vendors' operational performances at a granular country level.