In which resolution do you play?

I also play on 4k but I have a second monitor at 1920 x 1080 (My other 4k monitor broke somehow and doesnt turn on) :(

I'm not exactly sure what you mean by resolution but from the comments I'm thinking your meaning screen size. Honestly to me the resolution really does not matter I play on small resolutions at times and other times big resolutions. Just as long as I have a console or some sort of technological device I'm cool.

Edit* I play at a resoultion of 800 x 240 pixels, 854 x 480, and 3840 x 2160 but really my answer varies.

i have got acer monitor which is 2k + gsync + 144 hz and ips panel , complete gaming pack :D

1920x1080 is my favorite resolution for play videogmaes in relax

I play at 1920:1080p, yes i am an old man. no, but actually no

1080p at 60Hz on a very old monitor. Do not game that much anymore as I did before.

1920x1080 60hz on an Asus Monitor (i dont remember the reference, but it's cheap and good)

1920x1080. I consider it the most optimal for myself.

Full HD 1920x1080 60Hz. This is the best resolution for me and my 15 inch notebook xD

1600x1024 240Hz Dell monitor of 240HZ maximum, I play very well