All the rumors that Sony working on a new phablet apparently called Sony Xperia Z Ultra comes to end. Today, Sony teased the handset in a recent press invite (as shown below).
According to the rumors,, specifications of Sony Xperia Z Ultra features a 6.44 inch full HD Triluminos display with a resolution of 1920*1080 pixels, new quad-core Qualcomm Snapdragon 800 processor with a clock speed of 2.2GHz, 2GB of RAM and 16GB of built-in storage which is expandable up to 64GB using a microSD card, running Android 4.2 Jelly Bean and front and rear facing cameras. On the back of Sony Xperia Z Ultra there will be an 8 megapixel camera for photos and video, up front there will be a 2.2 megapixel camera for video calls.
Leaked image of Sony Xperia Ultra Z is shown below: