NEW YORK (AP) — Apple says it has reached a deal to bring the iPhone to China Mobile, the world's biggest phone carrier.

A customer examines a new iPhone 5s at the Nebraska Furniture Mart in Omaha, Neb., on Friday, Sept. 20, 2013, the day the new iPhone 5c and 5s models went on sale. (Image source: AP/Nati Harnik)

The deal could boost sales of the iPhone in China. Demand for iPhones, once hugely popular in China, have slumped there as lower-priced rival smartphones from Samsung and Chinese companies entered the market.

The iPhone 5s and 5c will go on sale in Apple stores and China Mobil stores beginning Friday, Jan. 17. Customers can register for phones starting Wednesday Dec. 25.

The companies didn't announce pricing or the terms of their agreement.

The iPhone, while popular around the world, has faced tough competition in recent years from cheaper smartphones running Google's Android software. Collectively, Android phones far outsell Apple's iPhone.

State-owned China Mobile has more than 750 million mobile accounts.

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