https://www.techradar.com/news/iphone-xs-vs-iphone-xr

Apple has just announced three new iPhones – the iPhone XS, iPhone XS Max and iPhone XR and it’s the first and last of those that we’re looking at here.

The former is the main successor to the iPhone X, while the latter is the replacement for the iPhone 8, but in many ways has more in common with the X than the 8.