What is the best resolution for Xiaomi Gaming Monitor G27i?

The best resolution is 1920×1080. Supports refresh rates up to 165Hz.
1.The higher the resolution, the more pixels the monitor can display, the more detailed the picture, and the more information can be displayed in the same screen area.
2.The higher the refresh frequency, the smaller the flicker of the image on the screen and the higher the stability. In other words, the better the protection of eyesight.