As stated in the thread title, would you consider purchasing one of the new iPhone models if it can be used with the Pencil?
No. I barely used it with my iPad. I’m positive I won’t used it at all with my phone. The pencil would be ridiculous with the smaller X anyways (just my opinion).
Before I gave my iPad Pro to my youngest son, I used the Pencil with it a good deal. The problem was that my use of the iPad Pro waned considerably once I got my work-issued MacBook Air. The MacBook Air made me realize how much I missed using my MacBook so shortly thereafter, I went out and purchased my current MacBook Pro. I still have the Pencil and after reading your reply, I grabbed it and started pretending that I was using it with my current iPhone X and for me, it's somewhat comfortable, but that doesn't mean I'd use it a good deal. Anyway, I appreciate the reply.