Huawei P10 F1.8 instead of reported F2.2 (low light camera)?

[omega3]

Most sites report the P10 back cameras to have an F2.2 aperture, however on this official site: http://consumer.huawei.com/en/phones/p10-plus/specs/ it says it has an F1.8 aperture, so what is correct. I live in Belgium, Europe by the way in case they have different versions of this phone depending on location.

I mainly want to know how this camera performs especially in low light compared to Galaxy S7 for example. If the P10 indeed has an F1.8 aperture this would obviously be alot better, brighter in low light shots.