Sony launches new Xperia X models

Sony's Xperia XA1 Ultra (left) and Xperia XZ Premium are the newest additions to the X series.

Sony Mobile has expanded its Xperia X series with the launch of XZ Premium and XA1 Ultra. 

Touted as the company’s most cutting-edge smartphone to date, the XZ Premium has a 4K HDR (High Dynamic Range) 5.5in display which uses Sony’s Bravia TV technology to give vivid colour, brightness, clarity and contrast to the screen. Users are however required to stream or download 4K HDR content to enjoy the display at its full capacity.