Sony today unveiled its latest flagship, Xperia Z4, on its Japanese website. An international launch date is still awaited. The Sony Xperia Z4 sports a 5.2-inch, full-HD display offering resolution of 1920 x 1080 pixels. It weighs just 144g and is 6.9mm thick. The device is mounted with a 5-megapixel selfie camera and 20.7-megapixel primary camera. The Z4 is fueled by a 2,930mAh battery and comes with a 64-bit Qualcomm Snapdragon 810 processor. It runs on Android 5.0 Lollipop and will be made available in Black, Copper, White and Aqua Green colors.