Sony's unveiled its new smartphone in Japan, the Xperia Z4, and like you might tell from the press images, it's a mighty familiar-looking one from a company still looking for its next big hit. Yep there's a lot of similarities compared to the Z3 (a phone that we were pretty happy with), including a 5.2-inch screen, metal frame, support for Hi-Res audio and the same wide-angle 25mm lens on the main camera. Upgrades since last year's model include a frame that's both thinner (down to under 7 mm) and lighter, while camera upgrades are focused on the front, which now gets the same wide-angle lens of the primary shooter as well as digital image stabilization to keep your selfie game completely on point.