Apple's iPhone XS looks identical to the iPhone X it replaces, but there are far more changes than you might expect
Apple iPhone XS vs Apple iPhone X - PhoneArena
Camera Comparison: iPhone XS Max vs. iPhone X - MacRumors
iPhone XS Compared Against The iPhone X - iOS Hacker
Apple iPhone XS Max (12th Gen) Dimensions & Drawings
iPhone X, Xr, Xs, and Xs Max Comparison - Swappa Blog
iPhone XS vs XS Max vs XR vs X [Specs Comparison]
MacRumors.com on X: Camera Comparison: iPhone XS Max vs. iPhone X / X
iPhone X vs. iPhone XR: What's the Difference?
iPhone XS specs vs. X, XR, XS Max: What's the same and different - CNET
iPhone XS Vs iPhone X: What's The Difference?