Without a doubt, this is the best camera we have seen in a phone since forever. The Huawei website says 'Your photography transformed by two Leica Summilux lenses and brilliant low light performance. Capture perfect photos every time.' and they are right!
The night photo results on this device are insane! The AI used is mind boggling and certainly may lead to the likes of Apple and Samsung taking a look for their next releases.
The P20 comes in three forms P20, P20 Pro and P20 Lite. To check which you would be best suited to then head over to their website here: https://consumer.huawei.com/