The Xiaomi Black Shark 2 has been launched today (March 18, 2019) in China. As expected, it is powered by the Snapdragon 855 processor, has a 6GB RAM base model and has a 6.39-inch FHD+ AMOLED display. This panel has some interesting HDR features, touted to enhance gaming and media experiences.
https://www.notebookcheck.net/The-Xiaomi-Black-Shark-2-is-now-preparing-for-pre-order-SD-855-and-Pixelworks-HDR-for-US-477.414670.0.html