This is the Huawei P20 series. The P20 Pro has f/1.6 and f/2.4 aperture lens - SoyaCincau
Huawei Mate 20 Pro camera better than P20 Pro's - Camera Jabber
SoyaCincau.com - Here's a clear look at the cameras of the Huawei P20 series. From top to bottom: P20 Pro, P20 and P20 Lite. Noticed anything different? Hint: Leica VARIO-SUMMILUX-H1:1.6-2.4/27-80 ASPH More