It appears the Xperia Z isn't Sony's last hurrah for 2013, with the Xperia A making an appearance in seeking approval from the US Federal Communications Commission (FCC). The phone boasts a 5-inch screen which is 1080p as you would expect. 

It also features a 2,300 mAh removable battery and uses the 13-megapixel camera from the Xperia Z. You also get LTE connectivity and 16GB of internal storage. We're not yet sure what sort of processor will be inside, although expect it to be a quad-core of some kind, possibly even a Snapdragon S4 Pro.

Read: Sony Xperia Z review

The filing with the FCC lists the phone as NTT DoCoMo's SO-04E, which means it is likely heading to Japanese phone networks first. If that is the case, it could appear on 15 May when DoCoMo unveils its Summer handset line-up. 

Sony has done a good job with its handsets in 2013 so far. It pipped the competition to the post with the Xperia Z, which has now been slightly overshadowed by the HTC One and Samsung Galaxy S4. Expect this new Xperia A to shift the limelight back in its direction. 

Hunter Skipworth

The baby of the Lint team, Hunter has been a tech fan since he bought his first MiniDisc..and what a waste of money that was. He began writing about electronics at the age of 16 and hasn't stopped since. Nowadays he fulfils his mobile phone and gaming obsession whilst attempting to distract people from his bizarre name. Regular meetings with the Gladiators crew see Hunter often returning to work battered and bruised. Considers himself a music obsessive, was once the most highly decorated scout in the country. Fan of trousers.