Smartphone and tablet users of Sony's older Xperia Z models will be glad to know that the Android 5.1.1 Lollipop is now well within their reach.

A fresh report from Xperia Blog confirmed that the latest Android OS update is now available for some older Xperia Z units, and more are to be revealed in the upcoming days.

"The older Sony Xperia Z series is now seeing the Android 5.1.1 Lollipop firmware start to seed in the form of build number 10.7.A.0.222. At the time of writing, we have noticed the update land on the Xperia Z (C6602, C6603 variants), Xperia ZL (C6503, C6506 variants), Xperia ZR (C5503 only) and Xperia Tablet Z Wi-Fi (SGP311, SGP312) and Xperia Tablet Z LTE models (SGP321 only)." Xperia Blog reported.

It is interesting to note though that rolling out OS updates as well as making them backwards-compatible for older units takes some time to fully complete. Even though the new patch carries much-needed fix to Android 5.0 bugs and performance issues, owners of other past Xperia models like the Xperia Z1 and Xperia Z1 Compact will just have to be patient.

As a consolation, the longer patches seed to a particular unit means developers aren't working with haste nor compromising the quality of the fix just to meet a certain software production deadline.

In other Sony Xperia news, the Japanese tech giant has apparently slashed off the prices of their newly released Xperia Z5 offerings.

Rich Edmonds of Android Central was browsing through the Xperia Z5 Compact, Xperia Z5, and Xperia Z5 Premium on Sony's eShop website when he realized the devices had a price cut.

The Xperia Z5 Compact will now be for £429 ($657), the Z5 for £550 ($842) and Z5 Premium for £630 ($965).

Xperia Z5 Sony has the scoop regarding the specs of the three new Xperia Z5 models. All three devices will have Qualcomm's Snapdragon 810 processor, a 23-megapixel rear camera with Hybrid Autofocus, a five-megapixel selfie shooter and 2GB of RAM with 32GB internal memory.

As for their differences, the Z5 Compact has a 4.7-inch screen at 780P while the Xperia 5 has a 5.2-inch screen at 1080P. Both will come with a 2,900 mAh battery with fast-charging capabilities.

Meanwhile, the Z5 Premium comes with a 5.5-inch screen and 4K resolution display while being equipped with a 3,430 mAh battery and support for fast charging as well.

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