Upgraded Sony Xperia Z5 with jumbo battery rumoured to be launched in September

Sony, which recently launched the Xperia Z3+ -- the global variant of its flagship Xperia Z4 smartphone -- is rumoured to launch the Xperia Z5, incorporating a powerful 4,500 mAh battery, in September 2015.

According to a Technodify report, the Xperia Z5 will also be launched in multiple variants including a Compact and an Ultra.

All the variants would incorporate high-end specs. Technodify also claims that the smartphone will be powered by a Qualcomm Snapdragon 820 processor, with 4GB RAM. The jumbo 4500 mAh battery is a major upgrade, compared to the 2930 mAh battery of the Z3+.

Another potential feature could be that of a fingerprint scanner, likely to be placed on top of the smartphone's home button.

With Xperia Z3+ facing numerous issues, the Z5 is expected to resolve the overheating problem and incorporate enhanced tech specs.

Moreover, rumour mills suggest that Sony is likely to incorporate its latest Exmor RS IMX230-based CMOS sensor, featuring aspects such as 4K video recording, HDR and 21 million pixel capabilities in the Z5.