Huawei’s latest smartphone can take photos in near-dark conditions without using its flash or a tripod. It also has a 24-megapixel selfie camera with its back main camera an unusual 40-megapixels.
The P20 Pro takes exposures lasting up to six seconds to get enough light.
It then uses artificial intelligence to deliver sharp images and avoid the blurring and smearing normally associated with employing this technique handheld.
The Chinese company recently told the BBC it could soon become the world’s bestselling smartphone brand.
At present, it is in third place behind Samsung and Apple, with US telecom networks’ refusal to sell its handsets proving an obstacle.
But while the South Korean company’s S9+ made the leap to having two lenses on its rear, the P20 Pro is distinguished by being the first mainstream phone to feature three.
“Huawei doesn’t have the brand Samsung or Apple have, so it’s almost had to go the extra mile in terms of the product,” said Ben Stanton, from the technology consultancy Canalys.
“And it’s nice to see it taking the lead with some of the hardware it’s producing.
“But the thing with camera technology is that unless you are looking at side-by-side comparisons [of photos] it can be very hard to tell which device is better.
“So, Huawei has its work cut out to sell some of the new features.”
The P20 Pro will cost 899 euros including tax ($1,115; £788).
That is less than both the Galaxy S9+, which costs 949 euros, and the iPhone X, which starts at 1,149 euros.
The new flagship’s three rear cameras each offer different capabilities.
The main sensor has an unusually high resolution of 40 megapixels.
But it uses “light fusion” software to combine data from groups of four adjacent same-coloured pixels to produce 10MP photos.
The benefit is that images taken in low-light conditions should be less “noisy” as a consequence.
“If you had an area of a table and put 40 little buckets on top and it was raining, it would take a longer time to get an inch-worth of rain in the bottom of each than it would if you had 10 buckets four times the size,” said marketing manager Peter Gauden.
“And that’s essentially what we are doing. Using light fusion to combine four smaller pixels together to make a much larger pixel, and therefore enhance our capability of absorbing light into the sensor.”