The Xiaomi 4K Monitor A27Ui has white dots on both sides at the top of the screen, which are mark points formed during the manufacturing process. These serve as positioning references only.
For your reference, here is more information about these white dots:
Additionally, these white dots are not illuminated pixels or screen defects, but rather subtle surface markers that are only noticeable under specific lighting or viewing angles;
These positioning dots are intentionally placed and do not indicate any damage or malfunction. They do not affect the display quality, functionality, or your overall viewing experience;
If the white dots appear to enlarge or become more noticeable over time, please contact after-sales service for further inspection or repair.