The Sony Xperia Z (codenamed Yuga) and the Xperia ZL (codenamed Odin) were revealed to the world as 2013 got underway, thanks to a couple of press shots that appeared on the Sony site yesterday.

Both handsets will no doubt be given the full limelight at CES in a week's time, but rumours have been circulating about a new Sony flagship for a while now.

The Xperia Z is believed to be running on a quad-core 1.5GHz Snapdragon S4 processor with 2GB RAM and Adreno 320 graphics. Both handsets are believed to be toting 5-inch 1080p LCD displays and 13MP rear-facing cameras.

While the handsets will both run on the Android OS, we haven't heard which version it will be - although for Sony to maximise impact we're expecting Jelly Bean overskinned with the latest version of Timescape.

What is for certain is that we'll have more news - and hopefully a hands-on with Sony's new smartphones - when CES rolls around six days from now.