The Xperia Z5 Premium Dual smartphone has a 5.5-inch screen and comes with a quick-charge option. Courtesy Sony

The Xperia Z5 Premium Dual will feature the world’s first 4K UHD display, Sony said in a statement. Courtesy Sony

Sony will also be releasing Xperia Z5 Dual and Z5 Compact versions which will be launched globally from mid-October. Courtesy Sony

The Xperia Z5 Premium Dual will feature the world’s first 4K UHD display, Sony said in a statement. Courtesy Sony