This shot of the arcade machine gives a pretty good reflection of the dynamic range of both these cameras as there is a good amount of highlight and shadow detail in the same frame. Looking at both images, you can see that the Mate 20 Pro has managed to maintain detail in the highlights. The individual LED lights of the scoreboard can be seen, whereas with the S10+ they’re slightly blown out and harder to make out. The Mate 20 Pro also has deeper blacks, thus maintaining better contrast in the image overall.
You can see that the Mate 20 Pro's image has more information in the shadow areas with less blown highlights. (The shop in the center of the image, for example, is completely blown out in the S10+’s capture.) Zoom in to 100% however, and you’ll find that there isn’t that much more detail captured after all as buildings and objects in the frame look like they’ve been painted rather than photographed. Still, there’s a lot more noise in the image captured by the S10+, so we’d pick the Mate 20 Pro for this round too.
Now for some resolution tests! With both cameras at ISO 800 and their standard zoom setting, these are the images we got. In 100%, 1:1 view, it becomes clear that the Mate 20 Pro presents a better image as the letters are more clearly defined, and the babies’ faces better resolved. Those same faces exhibit evident loss of detail in S10+'s capture, and contain more noise. You can’t even make out the individual squares on the color block to the lower right, as they’ve been lost to mush.