Apple CEO Tim Cook speaks in Cupertino, Calif., on Tuesday. The company unveiled a new mobile payment system called Apple Pay, which uses security built into the latest iPhones. Justin Sullivan/Getty Images hide caption

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The Samsung Galaxy Mega (from left), Samsung Galaxy S4 and Apple iPhone 5 are shown. Apple is expected to announce larger models of its smartphone on Tuesday. Richard Drew/AP hide caption

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With the ability to control phone calls, texts, and audio, Apple's new CarPlay system will ensure drivers' "eyes and hands stay where they belong," the company says. CarPlay will be included in several car models this year. Apple hide caption

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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

The new iPhone 5s with fingerprint-unlocking technology is displayed during an Apple product announcement Sept. 10 in Cupertino, Calif. Justin Sullivan/Getty Images hide caption

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The new iPhone 5c is displayed during an Apple product announcement Tuesday in Cupertino, Calif. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Phil Schiller, Apple's senior vice president of worldwide marketing, speaks about fingerprint security features of the new iPhone 5s Tuesday in Cupertino, Calif. Justin Sullivan/Getty Images hide caption

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Phil Schiller, Apple's senior vice president of worldwide marketing, speaks about pricing for the new iPhone during an Apple product announcement on Tuesday. Justin Sullivan/Getty Images hide caption

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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