https://www.cnet.com/news/iphone-xs-max-vs-galaxy-s10-plus-which-phone-has-the-best-camera/

General shots look stunning on both phones, with just slight variations in color temperature, contrast and brightness. Some shots from the S10 Plus looked a bit brighter, and others a bit darker and moodier, depending on what aperture it chose for that specific scene. The iPhone's shots look more consistent with a slightly cooler hue and more subdued colors. This category was tough, because the differences were so nuanced. For landscapes, I favored the bold look of the S10 Plus, but for people and objects I preferred the softer look of the iPhone. In most cases the better of the two really came down to personal preference.

With the Galaxy S10 Plus you have the option to take your photos up a notch by activating new software features found in the camera settings. The Scene Optimizer can identify 30 scene types and allows the camera to detect what type of shot it's looking at, then adjusts things like saturation and contrast based on what it thinks would best suit that scene. The Scene Optimizer also includes a Bright Night mode that brightens up lowlight shots, but the differences weren't as drastic as other night-shot effects like the Pixel's Night Sight feature.