Recently consecutive appearance information about the new Xperia, and after images reveal the Xperia A (Dogo) 1 week ago, Vietnamese Sony Xperia keep more of UL (codename Gaga).
While the FCC's report does not indicate anything more than the Sony brand, the Blog of Mobile device owners reveal 5-inch screen design characteristics as the other 2013 Xperia members. Also, Gaga is also equipped with Qualcomm's Snapdragon chip 600, 2GB RAM, 32GB internal memory, 2300 mAh battery, water resistant and dust (this is becoming common standard for mobile phones in Japan). Also on this page, UL will be exclusive for the KDDI network.
Source: Engadget