Careful with these year's vizios. I personally wouldn't recommend them. Rtings concluded these tvs accept a 4k@60@4:4:4 signal but don't actually display it. They only display something close.
Test pattern on Vizio P-series:
Test pattern on Samsung KS9000:
As you can see, the color test patterns above are blurry and show evidence of chroma subsampling. This is a common trick on cheaper televisions. The luma (brightness) is at 4k, so monochrome test patterns look clear, but the chroma (color) is at a lower resolution so the color patterns look blurry.
Also, the composite input doesn't accept 240p, so a lot of legacy game consoles like the NES will not work on it.
And the game mode does not work with HDR at the same time. You have to choose one or the other.
If you're looking for a recommendation, I would recommend the KS8000. Low input lag, impressive brightness and local dimming, and relatively affordable.