xperia_z2Sony's Xperia Z1 smartphone has been a huge success for the technology giant with mobile phone sales increasing by 30% during the latter half of 2013. Keen to expand their premium smartphone range, Sony recently unveiled the Z1's smaller sibling, the Xperia Z1 Compact. The Z1 Compact pretty much includes all of the full-sized Z1's specifications but has been cleverly squeezed into a smaller handset.

Sony are undoubtedly keen to build on the popularity of their smartphones so it's no surprise that a new handset is in the pipeline, the Sony Xperia Z2. According to reports we could be seeing the Z2 in February where it's expected to be unveiled at the annual Mobile World Congress in Barcelona which will be held at the end of the month.

As usual, there's a lot of speculation surrounding the Xperia Z2 with rumours of various specifications, features and images being reported upon. It's anticipated that Sony have designed a slightly bigger handset and the Z2 could come with a 5.2-inch screen which is 0.2 of an inch bigger than the Z1. Leaked images seem to indicate that the design will be along the same lines as the Z1 but with a few changes such as twin front speakers, notifications which can be customised and improved quick settings. The Z2 could also be sleeker and slimmer than the Z1.

It's likely that the new Xperia Z2 will be powered by a new and significantly faster processor, the Snapdragon 800 quad-core 2.3GHz CPU and as much as 3GB of RAM. Combined with expected built-in storage of 16GB which can be expanded with a microSD card to a maximum of 64GB, the Z2 will certainly be very quick and powerful.

It's highly likely that the Xperia Z2 will be all set up to run on Android KitKat 4.4. There is some debate as to the type of camera we're likely to see. It could be an improved version of the Z1's 20.7-megapixel rear camera but with a larger sensor or it could feature an enhanced 23-megapixel camera. The front-facing camera is expected to be somewhere between 2 and 2.5-megapixels.

As soon as we hear any more on the Xperia Z2 we'll be sure to let you know.