Apple calls it Enhanced Face ID. It's shown on both iPhone 11 and 11 Pro summaries. You'll notice none of the features are enabled by iOS 13, they're all enabled by new hardware.
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11 shows 22% more information on screen than the XS.
The XR/11 show the same amount of on-screen information as the XS Max/11 Pro Max.The XR is the same as the 11. The X, XS and 11 Pro are all the same, and the XS Max and 11 Pro Max are the same. The 11 Pro (non-Max) seem to present the least screen information in the current Apple line.