Kaoru Kato, president and chief executive officer of NTT Docomo Inc., introduces the Xperia Z5 Premium smartphone manufactured by Sony Mobile Communications during a news conference unveiling the company's new smartphones in Tokyo, Japan, on Wednesday, Sept. 30, 2015. Docomo, Japans largest mobile-phone carrier by subscribers, introduced 10 smartphone models today. Photographer: Kiyoshi Ota/Bloomberg via Getty Images
