Sony Xperia Z Ultra Manual / User Guide
This is the official Sony Xperia Z Ultra User Guide in English provided from the manufacturer. If you are looking for detailed technical specifications, please see our Specs page.
The Japanese have not only made the thinnest 6.5mm watertight phone with the largest 6.44" screen and fastest 2.2 GHz quad-core Snapdragon 800 processor with the Xperia Z Ultra at launch, but it also wanted to diversify its phablet functionalities beyond what is possible with Samsung's Note family, for instance. As such, they have employed a technology that allows you to write on the screen with any regular pen or pencil whose tip is more than 1mm in diameter, besides gracing it with stylus input functionality.