Apple's iPhone is losing ground in China while local rivals surge

New numbers are out for China's smartphone market — and they're a troubling sign for Apple. Overall smartphone shipments in China grew 3.3% in the first quarter, according to a Thursday research report from the International Data Corporation, but iPhone shipments notably fell by 9% year over year.Apple was the only major smartphone maker to lose market share during the quarter, according to IDC. Local rivals dominated the Chinese market, a key region for Apple that CEO Tim Cook has called "the most compet ...