Sony introduced the water-resistant Xperia Z Ultra with its characteristic OmniBalance design. The silver power button, thth glossk casing and ports hidden behind flaps save connections from a familiar fate when water is involved. The frame is made of polyamide fiber and acts in the same way as aluminum. The Z Ultra is barely thicker than the Huawei Ascend P6, which is notoriously thin, but due to the huge display it looks even narrower. The workmanship is flawless. The rounded corners of the Z Ultra sit well in the hand, but you have to admit that it is inappropriate for one-handed operation due to its 6.4-inch display.