Although the iPhone 11 (XR last year) has this year's CPU and FaceID... This is the first time a lower end phone's camera as caught up to and slightly surpassed the 7+'s camera.
Primary lens, optical stabilization, secondary lens, telephoto, digital stabilization.
The iPhone 11, will have a lower screen usable screen area as compared to the iPhone 7+...
The 7+ is 1080x1920. The iPhone 11 screen, horizontally it will be more constrained. The iPhone 11 scaling is on par with the iPhone 11 Pro, iPhone XR, iPhone 8, iPhone 7.
Keep in mind, pixels per inch, and resolution are not exactly represented by the graphical elements and object spacing. This goes for any Retina display. Imagine the screen is divided into a virtual grid independent of resolution. Everything is scaled in reference to the grid... I use the term "grid" just for this explanation. There is an official term for this, points, etc, which escape me.
The iPhone 6,6S,7,8,X,XS,XR,11 have the same virtual grid.
The iPhone 6+,6S+,7+,XSMax,11Max have the same virtual grid.