S24 Ultra vs X200 Pro: Need Help Deciding!

I'm planning to buy a flagship phone but can't decide between the S24 Ultra and the Vivo X200 Pro. On one hand, my mind is like, "You're spending that much on a Vivo?" but on the other hand, I love specs over brands, and the X200 Pro looks really tempting.

For any long-term Vivo users out there, how's the long-term smoothness and reliability of their phones? Does it hold up well over the years?