Samsung’s Galaxy S5 will obviously garner most of the attention at this year’s Mobile World Congress in Barcelona but Sony is also launching a flagship device at the show that could be an under-the-radar hit. Some leaked pictures posted on Chinese website Digi-Wo show both the black and white versions of the Xperia Z2 smartphone that Sony will be unveiling at MWC this month. Specs for the Xperia Z2 are tipped to include a quad-core Snapdragon 2.3GHz processor that supports 4K video playback via HDMI-out, a 5.2-inch 1080p display, 3GB of RAM and Android 4.4 KitKat. An additional picture showing both Xperia Z2 models next to the Xperia Z1 follows below.