Apple says it has sold 9 million iPhone 5s and 5c models since their launch on Friday. Here, staff members at an Apple retail store in Beijing cheer a customer after he bought a new iPhone. Andy Wong/AP hide caption

itoggle caption Andy Wong/AP

A woman looks at her phone in front of the Apple store in Shanghai. Apple unveiled a cheaper version of the iPhone on Tuesday. Aly Song/Reuters /Landov hide caption

itoggle caption Aly Song/Reuters /Landov

Craig Federighi, senior vice president of software engineering at Apple, discusses features of the new iOS 7 during the keynote address of the Apple Worldwide Developers Conference on June 10 in San Francisco. Eric Risberg/AP hide caption

itoggle caption Eric Risberg/AP