i did the same Sold my XI own both and have been going back and forth between the two but no more.
The 8+ wins, if just for the keyboard. Both are great phones but going back and forth between the two is hard so I picked my favorite and am selling the X today.
actually "got rid of" my x
it was too small battery life was terrible for me It was'nt smooth on 11.2 which was Crazy for me cause it was a 1249$ phone,
the screen was so wierd ,the notch, wierd aspect ratio, it got hot on the top-right corner
and i didnt even like the design i use My phone For Anatomy apps, taking videos of some classes,etc so battery life and screen size are important for me
and Face ID is slower than Touch id im just not used to that and Removing the Home button made everything much harder
im not against the x but to me its just a fancy useless product with Powerful advanced Features ,and i dont want that