New Lumia leaks from China, could be Lumia 730 or 830

Tom Warren has just tweeted the above picture of a new Nokia Lumia handset running Windows phone 8.1 Update 1.

The device was likely being demonstrated by Microsoft at the launch of Cortana in Beijing and according to Tom could be the Nokia Lumia 730 or 830.

With Joe sending a high resolution selfie recently I suspect we are looking at the Nokia Lumia 730.  What do our readers think of the device? Let us know below.

Update: Tom has now confirmed that that the handset is in fact the Nokia Lumia 1520.