Japan handset shipments dropped by -10% annually in Q1 2020. The leading vendor, Apple dropped by -11% YoY although the latest flagship iPhone 11 variants took lead in Japan. Apple continued to capture top positions through all local Japanese operators. 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 Q1 2020. 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.