The Nokia Lumia 1520 is a big-screen behemoth that will truly blur the line between smartphone and tablet when it is released later this month as an exclusive for AT&T customers in the U.S. While the Nokia Lumia 1520 is only 8.6mm thick when not measuring the phone's bumped-out camera, it is 6mm wider than the enormous Samsung Galaxy Note 3. 

The Nokia Lumia 1520 is the world’s first 6-inch, 1080p Windows Phone. It features a 20-megapixel PureView camera with optical image stabilization (OIS) and a Carl Zeiss lens. While the Nokia Lumia 1520 features less than half the resolution offered by the 41-megapixel Nokia Lumia 1020, it should be plenty for most megapixel-hungry mobile camera users.

AT&T and the Windows Store are both accepting pre-orders for the Nokia Lumia 1520 before its release date. Nokia Lumia 1520 pre-orders from the Windows Store cost $199 with a two-year contract discount and $549 in full. The Nokia Lumia 1520 will also ship with a free, white flip cover and $50 worth of app credit when purchased from the Windows Store when it sees its release date next Friday.

AT&T will offer the Nokia Lumia 1520 for $99 following a web-only discount, and will ship three days earlier than the Windows Store, on Tuesday. AT&T will offer Lumia 1520 buyers 50GB of AT&T Locker storage, but no app store credit or case.

Nokia will release its Lumia 1520 with a 2.2GHz, quad-core Qualcomm Snapdragon 800 system-on-a-chip (SoC) and 2GB of RAM. The Nokia Lumia 1520 is offered in matte yellow, white and black, as well as a glossy red polycarbonate body.

Nokia will release the Lumia 1520 with Microsoft Office preloaded, along with Microsoft Exchange and Office 365. Live Tiles are optimized for the Lumia 1520’s larger screen as well.

Nokia has combined its Pro and Smart camera apps, and the Lumia 1520 will also release with the new “Refocus Lens,” a software variation on the Lytro camera that allows for changing a photo’s focus after the snap. The Nokia Lumia 1520 features dual LEDs for brighter flash in photos, with both LEDs in white, unlike the amber LED offered to improve lighting in shots taken on the iPhone 5S.

The Nokia Lumia 1520 also features Qi-capable wireless charging, a 3,400 mAh battery and four different microphones for sound-cancelling during phone calls and improved audio recording. Microsoft (NASDAQ:MSFT) relies on Nokia for 95 percent of Windows Phone sales, and will acquire the phonemaker in 2014.

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