PICS: Nokia unveils first phablet Lumia 2520

The struggling cellphone maker is turning to the camera to differentiate its phones from rivals. The Lumia 1020 has a 41-megapixel camera with technology designed to produce better low-light shots and offer greater manual controls than most smartphones. The new devices will use Microsoft's Windows system and come as Microsoft aims to complete its 5.44 billion euros ($7.4 billion) deal to buy Nokia's phone business and patent rights. The deal is expected to close early next year. Nokia, a Finnish company, has seen its cellphone business unravel since Apple revolutionized the way people use handsets with the 2007 introduction of the iPhone. Microsoft, meanwhile, is struggling amid declines in sales of traditional personal computers in favor of smartphones and tablets.