The nubia Z50 Ultra smartphone is set to arrive with a 4th-gen under-display camera, and now we know the official launch date. The brand will introduce the device on March 7 with a UDC technology called Neovision. The device will have a stacked 16 MP selfie camera with a 6P lens, 2.24 µm pixel size, and f/2.0 aperture under the 6.8” AMOLED panel. The official teasers confirmed leaked schematics from before - flat sides all around and an alert slider on the right, above the power key and the volume rocker. There is a tiny sliver between the screen and the top for the earpiece, which...