The polished aluminum frame of the P20 Pro is home to the power button and the volume rocker on the right side. The power button has an indentation that is painted red – the P10 and P10 Plus had a red accent too, only around the button. On the opposite side of the frame you’ll find the card tray. Or, to be precise, the SIM card tray – there’s no microSD slot for storage expansion on the P20 Pro. You do get 2 nano-SIM bays, though. The tray also has a gasket to help with the dust and water protection – you don’t want stuff coming in through the card slot and compromising that IP67-rated weather sealing.
The P20 Pro measures 155 x 73.9 x 7.8mm, which is 3mm shorter than the Galaxy S9+, 0.1mm narrower and 0.7mm thinner. The 6-inch Mi Mix 2s is a mil wider and 0.3mm thicker than the Pro, but some 4mm shorter. The iPhone X is noticeably more compact with its 143.6 x 70.9mm footprint and it’s also 0.1mm slimmer.
The Huawei P20 Pro is equipped with a 6.1-inch AMOLED display. Resolution is 1,080×2,240px which means an even-weirder-than-usual 18.7:9 aspect ratio – apparently, that’s needed to accommodate the notch. The pixel density works out to 408ppi. Last year you could have a P10 Plus with a QHD display, but not with the P20 generation.
Huawei P20 Pro battery life
The P20 Pro is equipped with a 4,000mAh battery, Huawei likes that number. It’s quite the generous treatment in a world where the Galaxy S9+ has a 3,500mAh power pack, and even the Mi Mix 2s’ battery is rated at 3,400mAh.
In our testing, the P20 Pro lasted upwards of 13 hours looping videos and fourteen-and-a-half hours running our web browsing script. The 3G voice call test returned a 21h talk time
The P20 Pro has a similar stereo setup we’ve been seeing on Huawei phones since at least the Mate 9 – the earpiece is also a second speaker complementing the main bottom-firing one. In landscape, the earpiece takes care of the mids and highs for either the left of right channel depending on orientation, while the main speaker plays the other channel’s mids and highs, plus the lows for both.
The P20 Pro has a triple camera on its back – the future is now. Two used to be the norm, a norm Huawei worked hard to establish with its unusual color+monochrome designs despite not being the pioneer in dual-cam setups. Well, it’s beaten everyone to three. The P20 Pro’s number one shooter packs 40MP on a large 1/1.7″ sensor – compare that to the 1/2.3″ sensors of Sony flagships, and the 1/2.6″ ones in the latest Samsungs, HTCs and the Pixel 2.
There’s a bit more to be said about the inner workings of the 40MP camera, but it’s a little too technical. The short version is that the 40MP camera doesn’t really have 40MP of color resolution, but is instead meant to capture two different exposures simultaneously and produce better looking 10MP images.
The 40MP sensor has a 27mm-equivalent lens in front, stabilized too. Its aperture is f/1.8 which may not sound huge in a world of f/1.5 Galaxies and f/1.6 LGs, but let’s not forget how much bigger the imager on the P20 Pro is.