Why does the screen of the Xiaomi MIX Flip appear reddish or greenish when viewed at an angle?

The phone features advanced OLED technology with the latest generation of luminescent materials, enhancing screen brightness. When viewing the phone at an angle, slight color differences will occur due to the refraction of different colored light. This is a normal phenomenon. Xiaomi products undergo rigorous inspection before leaving the factory to ensure they meet Xiaomi's specifications, so you can use them with confidence.
You can try the following settings adjustments:
Go to [Settings] >> [Display & brightness] >> [Color scheme] >> select [Original color PRO], and adjust the position within the sphere below to change the screen display preference.