Most smartphones available in the market today have a fixed camera aperture, which usually produces images that are grainy and full of noise when used in low lights.
Dual Aperture has F1.5 and F2.4 modes, allowing the camera to adapt to bright light and super low light automatically. Industry first F1.5 aperture can accommodate 28% more light than S8's F1.7.
If it's dark, the lens opens to F1.5 mode to let in more light for a bright and clear photo. In the daylight, the lens shifts to F2.4 mode to help your picture come out sharp.