Not the GP, but the pixels on my 43" 4k TV are just slightly smaller than those on the 1080p monitors it replaced. I have the TV positioned about an arm's length away. It's farther than the monitors it replaced. And it's far enough away the I don't have to crane my neck side to side. (To that end, I also use a tiling window manager and have ~3 inch gutters on the side.)

I love it and it's just a $200 TCL TV that happens to have good response (thanks rtings.com).