Xiaomi Black Shark Helo is an ambitious follow-up

Despite its parentage, the Xiaomi-funded Black Shark hasn't exactly been one of the more prominent gaming smartphones in the market or even in news. It has been largely eclipsed by the Razer Phone and the ASUS ROG Phone, despite its one-sided controller gimmick (that Huawei has just copied in the Mate 20 X). That hasn't fazed the sub-brand, however, and …