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A Sony logo is seen at an unveiling of the company's head mounted display "Personnal 3D Viewer HMZ-T1", in Tokyo August 31, 2011.REUTERS

After weeks of intense speculation, Japanese electronics giant Sony finally unveiled the monster phablet Xperia Z Ultra at the ongoing MAE (Mobile Asia Expo) 2013 in Shanghai on Tuesday.

Commenting on the launch, Director of Xperia Marketing at Sony Mobile Communications, Calum MacDougall said, "The Xperia Z Ultra is the most exciting revolution in large-screen smartphone entertainment devices with both the slimmest and largest Full HD smartphone display* in the world that is second to none." 

"We're (Sony Mobile Division) already bringing the best of Sony technology and design across a range of premium smartphones and tablets, and now we are bringing this same premium offering to the large-screen smartphone segment, setting a new standard for others to follow," he added.

Sony Xperia Z Ultra sports a 6.4-inch Full HD TRILUMINOS screen with new display technology X-Reality Mobile engine and runs on the Android v4.2 Jelly Bean powered by the super-fast 2.2GHz Qualcomm Snapdragon 800 series quad-core processor with Adreno 330 graphics engine.

Like all its high-end Xperia brethrens, the new phablet also boast of dust-proof and water-resistant IP55/IP58 certifications. Users can record full HD videos under water using the 8.0-megapixel camera which boasts of Exmor RS camera technology and 16X digital zoom with auto-focus.

Sony has confirmed that the new Xperia Z Ultra will hit global markets with three colour variants - black, white and purple, by the third quarter of 2013. However, the company chose to remain silent regarding the price details of the flagship device.

Along with the new Xperia Z Ultra, Sony also launched the second generation SmartWatch 2 at the MAE 2013.

Key Specifications of Sony Xperia Z Ultra:

Model Sony Xperia Z Ultra
Display 6.44-inch Full HD Triluminos TFT LCD screen boasting X-Reality for Mobile display technology; also comes with shatter proof sheet along with scratch-resistant glass shield.Resolution: 1920x1080p

pixel density: 342 ppi (pixels per inch)

OS Android v4.2 Jelly Bean OS
Processor Qualcomm Snapdragon 800 series quad-core processor with 2.2GHz
GPU Adreno 330 graphics engine
Storage capacity 16GB, expandable up to 64 GB via microSD card
Camera Main: 8.0-megapixel camera with Exmor RS lens technology and 16X digital zoom, full HD video recordingFront: 2.0-megapixel camera
Network 3G & 4G(LTE)
Battery 3000 mAh, up to 14 hours talk time
Add-ons Dust-proof and Water-resistant IP55/IP58 certifications, NFC, Bluetooth, v4.0,A-GPS,Wi-Fi and Wi-Fi hotspot, micro-USB v2.0, MHL support
Dimensions 179.0 x 92.0 x 6.5 mm
Weight 212 g
Price Not revealed