I have gone through 40+ Vivo X300 Ultra and Oppo Find X9 Ultra camera and phone reviews. After so many videos, it finally came to the point where I felt, it's really not possible to decide which is the best phone among them.
Vivo's 10x sucks but Oppo has it better.
Oppo's image stabilization is not as good as Vivo.
Vivo's selfie camera is bad. Like real bad.
Vivo gives amazing lens with better light intake and stabilization but Oppo sucks on this front.
Oppo's low light Ultrawide video/image performance is much worse than Vivo.
Vivo's battery is lesser than Oppo.
There are so many more which really screws with the mind of a person. It's not what I want of a phone, I want everything there is! It has become almost impossible to decide among the two. So I'll defer my purchase until 2027. I was really excited and looking forward this year but it doesn't seem easy.