The Samsung Galaxy S9 has been making headlines all week leading up to, during, and after its announcement last weekend. DxO Mark is a company dedicated to testing all kinds of camera equipment and includes smartphone cameras as well. The Galaxy S9+ was praised for offering "one of the most comprehensive smartphone imaging feature sets available today." This is definitely a result of Samsung's dual-aperture camera system that switches between f/2.4 for bright lighting conditions and a much faster f/1.5 aperture for taking photos in low-lighting conditions. Here's DxO Mark's brief...
Source: https://www.gsmarena.com/dxo_mark_praises_galaxy_s9_with_a_score_of_99-news-29915.php