Global smartphone shipments grew solidly by 28% YoY in Q1 2021, amid slower, but solid expectations for recovery from Covid-19, stronger shipments from top vendors and stronger 5G smartphone shipments. Most major countries posted a double-digit growth. Samsung became no.1 smartphone vendor in majority 8 countries while Apple became no. 1 vendor in 5 countries. vivo rose to no.1 in China for the first time. Our extensive report tracks the world's 25 leading smartphone vendors' shipments and marketshare across 15 major countries worldwide from Q1 2012 to Q1 2021. 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.