A lens with
a maximum aperture of f / 4 or f / 5.6 would be a bit slower and less light - sensitive, affecting its performance in low - light situations.
Talking about the front facing modules, Huawei P9 has an 8MP sensor with
a maximum aperture of f / 2.4 while Galaxy S7 has a 5MP sensor with f / 1.7 aperture.
Look for a «fast» lens too, marked by a large
maximum aperture of about f / 1.8, or at least f / 2.2 (smaller numbers denote larger apertures).
Not exact matches
For low - light conditions, the lens
aperture is kept fairly good to f / 2.0 offering a
maximum ISO sensitivity
of 3200.
Thanks to the fact that you have two cameras you can blur out backgrounds and keep yourself - and anyone else - in the foreground sharp — and as the camera packs Huawei's time - honoured
Aperture mode, the background defocus can be adjusted after you take a shot, giving you
maximum control over the degree
of blur.
The lens has an f2.0
aperture and ISO can be set to a
maximum of 12800.
The 1/3.06 in sensor size is supported with an f / 2.0
maximum aperture to let lots
of light in for the best possible results, and this shows when there's not much light available.