https://techcrunch.com/2018/10/23/x-2/

This iPhone is great. It is most like the last iPhone — but not the last “best” iPhone — more like the last not as good iPhone. It’s better than that one though, just not as good as the newest best iPhone or the older best iPhone.

If you’re upgrading from an iPhone 7 or iPhone 8, you’re gonna love it and likely won’t miss any current features while also getting a nice update to a gesture-driven phone with Face ID. But don’t buy it if you’re coming from an iPhone X, you’ll be disappointed as there are some compromises from the incredibly high level of performance and quality in Apple’s last flagship, which really was pushing the envelope at the time.