Global handset shipments increased 3% annually in Q3 2017. Eight countries including Brazil, Russia, South Korea and Germany posted the positive annual growth while four countries including USA and China decreased annually. Samsung became no.1 handset vendor in the majority 12 countries while Apple led in USA and Japan. Our extensive report tracks the world's 30 leading handset vendors' shipments and marketshare across 15 major countries worldwide from Q1 2012 to Q3 2017. The 15 countries tracked account for 7 in 10 of all global handset volumes. Countries covered include: Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Russia, South Africa, South Korea, Spain, UK, and the United States.