Sony Xperia Z2/Sirius

Sony used CES 2014 to launch two devices, the Z1 Compact and the Z1S. Neither are a flagship replacement for the Z1. Traditionally Sony has launched a new device at the beginning of the year, but it looks like we're in for an update later in 2014. There are rumours of a new flagship handset, codenamed Sirius, to be launched at Mobile World Congress in February 2014.

The Xperia Z product line has a real strength in design. We love the slim monolitic looks, but felt that the Z1 took things a lettele  too far  with the handset bloating too much to accomodate all the tech within. We'd predict that the Xperia Z2/Sirius will slim things down a little, but keep to a similar, recognisable, design that fits the family.

We'd also expect similar internals to the Z1, with a Qualcomm Snapdragon 800, perhaps 3GB of RAM, a full HD display, with suggestions it might grow to 5.2 inches to match the LG G2. If Sony can do this without growing the size of the phone's body, then it will be an impressive feat. We'd also expect Sony to be supporting 4K video capture with the camera, ready for playback on your Sony 4K TV.