Some Sony phones are guaranteed to get the new OS, but a number of Xperias still face uncertain KitKat futures.
Don't throw away that DualShock 3 pad just because you intend to get a PS4. It may soon be compatible with Xperia smartphones.
The Xperia Jelly Bean update begins today for Xperia T and Xperia V owners, while Xperia TX owners will see the update next month.
Sony has confirmed which handsets will be treated to the Android Jelly Bean update, but they'll have to wait until next year.
Sony jumped three places in the global smartphone sales rankings from where it stood during with the same time last year.
Industry sources say Sony wants to double the amount of smartphones it ships this year and next, but profits may remain elusive.
New firmware updates for the phones add features like Screen Mirroring and upgrades to HD Voice starting Wednesday.
ExclusiveSony says smartphones are critical to its success and is a key way of driving consumers to its other products.