Same. But different. But still same. The iPhones are masters at being that, especially the S series. What Apple obviously can't do is come up with clever names. Worse, the XS may as well go down in history as the worst labelled phone ever. Two Latin letters, but only one means a number. What could go wrong?
Source: https://www.gsmarena.com/apple_iphone_xs-review-1827.php