Global smartphone shipments grew by 5% annually in Q3 2017. Elevent countries including India, Brazil, Russia and South Korea posted the positive annual growth while four countries including China and USA decreased annually. Samsung became no.1 smartphone vendor in the majority 12 countries while Huawei defended no.1 position in its home China. Our extensive report tracks the world's 25 leading smartphone 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 smartphone volumes. Countries covered include: Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Russia, South Africa, South Korea, Spain, UK, and the United States.