Some Sony Xperia devices have been on the market for quite some time but have not received the Jelly Bean update yet. However, the wait has finally come to an end, as Sony has decided to release Android 4.1 Jelly Bean update for a number of Xperia smartphones.

Sony has confirmed it is going to rollout a software update for Xperia P, Xperia Go and Xperia E dual this week.

"The new software brings Android 4.1 'Jelly Bean,' along with a number of different and improved Sony features. We've been working to blend our Sony Xperia software with Google's Jelly Bean release to create some cool user experiences," Sony discloses on its official blog. "The new firmware update is going to bring so many amazing and new features on these three Xperia devices but the biggest feature of the update is going to be the Battery STAMINA mode."

The Battery STAMINA Mode lets the user get the most out of the Xperia battery when he is in need of it. "Fully customizable, your phone knows when the screen is off and shuts down the draining apps you don't need, and then instantly starts them up again when the screen is back on," the blog states.

The update will also bring Google Now onto the devices. This feature tells you about the weather, traffic in your city and other things, like your train schedule or live scores.

The update will be rolled out in phases, so it is highly possible that the dates and times of the update will be different across the world.

The other Xperia devices, such as the Xperia S, Xperia SL, Xperia ion and Xperia acro S are also in the pipeline to get the firmware update, but the update will take some time to reach these devices.

"We've heard your questions and know you guys are keen to hear about updates for Xperia S, Xperia SL, Xperia ion and Xperia acro S - these smartphones are next in line to start receiving Sony's Android 4.1 software from the end of May," Sony states.