Nokia Wednesday unveiled an entry-level Windows Phone 8 Lumia smartphone, and a variant of its top of the line Lumia 920, for the mainland China market.

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The new Lumia 620 will have an unsubsidized price of about $250, intended as Nokia's lowest priced smartphone with the new Windows Phone 8 operating system. The phone has a smaller screen, at 3.8-inches diagonal, somewhat lower resolution, overall smaller, thinner and lighter than the mid-range Lumia 820 and high-end 920.

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