Lars Rehm, for DPReview:
We’ve only had a few days with the Huawei P20 Pro but that has been long enough to say it is the most advanced smartphone camera to date. General image quality is very good, with good detail, very low noise levels across all light levels and excellent dynamic range. In terms of those parameters the differences to other flagship smartphones, for example the Google Pixel 2 or Samsung Galaxy S9 Plus aren’t massive, however.
Where the P20 Pro really leaves the competition behind is zoom. The dedicated 3x tele-lens provides a real advantage in the zoom department and makes this device the best current smartphone for zooming. The triple camera is also capable of creating a natural looking bokeh simulation, and in video mode the image stabilization is up with the very best, creating an almost steady-cam like effect.
While I consider Apple’s software manipulation of the iPhone camera’s shits to still be superior to its competition, I wish they’d try to use physically larger sensors. Portrait Mode should improve at a faster rate, too. I wouldn’t mind a third lens either — an 85 mm equivalent to join the current 28 mm and 56 mm lenses.