The poster doesn’t say much beyond extolling the Snapdragon 845 chipset by Qualcomm. Still, notice how there’s no mention of Xiaomi, even though it owns part of Black Shark Technology Inc.
It looks like Xiaomi is trying to launch a gaming-focused sub-brand. The challenge to the Razer phone is obvious, but we shouldn’t forget the Acer Predator 6 phone (or maybe we should, Acer certainly did). Besides the phone itself, there will be a feature called “Sharp Space”, a Game Center-like app.
Source (in Dutch)