Sony Xperia Z and Xperia Tablet Z
A visitor looks at the new Sony Xperia phone and tablet through a glass window during the Mobile World Congress in Barcelona.Reuters

Japanese smartphone maker Sony has started rolling out Android 4.2.2 Jelly Bean update for its Xperia Tablet Z.

Earlier this week, Sony community website Xperia Blog reported that Android v4.2.2 Jelly Bean with build number 10.3.1.A.0.244 has been rolled out to the Xperia Tablet Z.

"Confirming: as promised JB4.2 rolling for #XperiaTabletZ & #XperiaZR ( ) - brings multi-user support for #XperiaTabletZ," announced Sony on its twitter handle.

As of now, it's only the LTE version of the tablet is getting upgraded to Android 4.2.2 Jelly Bean and the WIFI version is expected to receive the update in the coming days.

The update brings changes in the positioning of navigation buttons and the notifications appear in the top bar beside the changes in the Quick Settings.

Sony Xperia Tablet Z

Sony's 10.1-inch Xperia Z, measuring 6.9mm in thickness and weighing 495 grams, was unveiled at the Mobile World Congress in Barcelona. It is powered by a 1.5 GHz Qualcomm Snapdragon S4 Pro mobile processor and sports an 8-megapixel rear camera and comes equipped with Exmor R feature for mobile, as well as a 2-megapixel HD front-facing camera.

The most notable feature of the Sony Xperia Z tablet is its one-touch function, which enables users to share songs, photos and videos to other NFC-enabled devices at a fast speed and with ease. Another feature is its Universal IR Remote that can control TV and other devices directly from the tablet. The tablet packs 6,000mAH battery and is dust-proof and water resistant.