The leak may well start off a month or so of official and unofficial unveilings of what the world’s largest phone show would have brought. This one is probably just a concept device, though.

Image: CNET

The unnamed phone looks like it functions at a regular smartphone size before a sliding panel is pulled from behind and to the left to turn the device into something with double the screen size. It’s unclear how this would work but appears as though there is no physical split to the screen.

The most likely way it functions is with a wraparound plastic screen that unfurls as you pull out the sliding section.

From the back the phone bears a resemblance to the Huawei Mate X with the camera array, as well as TCL’s own 10 Pro smartphone

Related stories for further reading