Japan handset shipments grew 2% annually in Q2 2017, boosted by Apple's robust volume and market share growth of Sony and Samsung. Apple's iPhone 7 / 7 Plus / SE and Sony's Xperia XZ / XZ Premium / X Compact were among the best-selling handset models through local operators. Samsung recorded the biggest share in 4 years. Apple continued to capture top positions through all local Japanese operators based on the robust volume of the latest flagships, iPhone 7 and 7 Plus. Our extensive report tracks 17 handset vendors' marketshare by quarter at all major operators in Japan, including NTT Docomo, Softbank and KDDI from Q1 2012 to Q2 2017. The report can be used by handset vendors, component makers, content developers, vehicle manufacturers and others to identify winners and losers by carrier in the high-value Japanese mobile market.