https://www.cnbc.com/2019/02/11/iphone-shipments-in-china-fall-19point9-percent-idc.html

Apple's iPhone shipments fell 19.9 percent during the fourth quarter in China, according to the latest figures from research firm IDC published on Monday.

This was reflected in Apple's earnings last month, when it said it booked $13 billion in revenue from China during the quarter, down 27 percent from the year-ago quarter. Overall, Apple said iPhone revenue was down 15 percent for the quarter.