6. Sony Xperia Z3
According to the latest research, Sony Xperia Z3 is one of the bestselling smartphones from Sony in Japan. The company has been struggling to succeed in the international market. However, in Japan there is a huge market for Sony Xperia Z3. This smartphone has a unique and compact design with a Quad Core 2.5GHz processor and 2GB RAM. It features Sony’s trademark waterproof design with a 4.6-inch screen and a high definition 20.6 MP camera
