The Chinese smartphone market had another bad year, Engadget reports, citing the latest data from Canalys. “Canalys has estimated that smartphone shipments in the country plummeted 21 percent year-over year in the first quarter of 2018 -- the steepest drop since 2013,” it writes. “Almost everyone saw their shipments go down, with Oppo and Vivo (both owned by BBK) taking the worst hit with a 10 percent drop.”