Last year at Gamescom, I got to feast my greedy little eyes on a 540 Hz monitor from Asus ROG and was mighty impressed. That one is a 26.5-inch 1440p/720p dual-mode deal, though, so not necessarily for esports. As I've argued before, 720p is a bit low even for esports. And 26.5 inches and 1440p is too big on both counts. What's ideal then, you ask? 24–25 inches at 1080p, and it seems that's exactly what Asus ROG has teased and now announced in the form of a new 540 Hz OLED called the ROG Strix OLED XG259QWPG.
It's a 1080p monitor, of course. The CS2 pro's fave, which I tested recently, the Zowie XL2586X+, is 24.5 inches on the diagonal and has a maximum resolution of 1920 x 1080, and that seems to be what most high refresh rate esports monitors go for.