One thing I’ve always appreciated about the silver or lighter-colored Apple Watch is how the contrast between the case and the glass makes the bezels look thinner and more refined, especially with lighter watch faces. If I weren’t set on the S10 Natural Titanium, I’d definitely go for the Silver Aluminum. I was tempted by Jet Black, but after watching several comparison videos between it and Slate Titanium, I realized Jet Black looks more like shiny plastic than aluminum.
Silver also makes it much easier to match with different bands.