One of the most interesting smartphones to arrive in 2019 will be the Nokia 9 PureView - mostly thanks to its crazy five-lens rear camera system.

The handset is claimed to run Google's Android One operating system - that's the Pixel's version of Android 9.0 Pie which is exactly as Google intended, with no Nokia-built extras - and have an in-display fingerprint reader. Featured on phones like the OnePlus 6T, we expect such readers to be popular on smartphones right through 2019.

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But of course the most striking aspect of the Nokia 9 is that camera system. Comprising of five lenses made by Carl Zeiss, little is known on exactly what each lens will do, but we suspect wide-angle, zoom and blurred-background portrait options will be present and correct. As well as the lenses, there is a flash and what could be some kind of depth sensor for accurately blurring the background of portrait photos.

Nokia previously used the PureView name on the 808, a smartphone which was launched back in 2012 and packed a huge 41-megapixel rear camera, far surpassing anything from the time. By bringing the name back for the 9, we are expecting a similar watershed moment from the 9.

The leaked images come from Evan Blass, a notorious and often accurate technology leaker who regularly posts device images on Twitter before they are officially announced. It is likely that HMD Global, the company which owns the Nokia brand, will announce the 9 PureView at Mobile World Congress, the annual telecom conference which takes place in Barcelona at the end of February.

What's interesting, of course, is how Nokia is taking this five-lens approach to improved photography, while Google sticks to its AI-driven single-lens setup for the Pixel 3, which produces the best images of any smartphone from 2018.

A video also published this week, this time by MySmartPrice, claims the Nokia 9 PureView will have a 5.99-inch screen with a 2K resolution. It will, according to the video, be powered by a Snapdragon 845 processor, have wireless charging and an in-display fingerprint reader, plus 6GB of RAM and 128GB of storage. Running Android One means the Nokia's software will be the same as that used by the Google Pixel 3, with no changes made by Nokia or HMD.