The first tease of Sony's upcoming Xperia Z4 smartphone surface

Mobile World Congress 2015 isn't too far away, with the mobile-centric conference kicking off on March 2, 2015 - but we're seeing the beginnings of Sony teasing the world of its upcoming flagship, the Xperia Z4.

Sony looks to be dumping in quite the mouthful of specifications into the Z4, where we can expect a 5.5-inch QHD panel, pumping out 2560x1440. Inside of the Z4, we should expect Qualcomm's Snapdragon 810 processor, 4GB of RAM, a 20-megapixel rear-facing camera, support for wireless charging, and IP68 waterproofing.