i think its worth to get iphone x. Not just better screen, better camera (unless your getting iphone 8 plus but that phone is too big for my liking), gesture based UI.  best thing for me is faceID. you see notifications on the lock screen which you can go to diretcly by touching it as the phone is already unlocked as you look at them. makes everything seamless. This phone will last you 3-4 years easy and worth 200 more. trust me