[mafuyu]

The biggest issue for low light is sensor size. Smaller sensors means more noise, and that noise is smoothed out with computational photography. That's why most manufacturers are going for more discrete sensors with different lenses, instead. Samsung does have a "periscope" design for the super tele in their latest phone that mounts the sensor vertically. Lenses are more important than sensor for sharpness, and there's obviously not a ton of room in these phones to put big lenses. Camera bumps are already growing quite large.