Why do the straps of the Xiaomi Smart Band 9 Active get dirty easily?

The straps of the Xiaomi Smart Band 9 Active, whether black or white, can get dirty under certain conditions, though the material is not inherently prone to dirt.
For your reference, the reasons why the straps get dirty easily and how to clean straps properly are as follows:
1. While the black strap doesn’t attract dust more than other colors, its dark color creates a stronger contrast with dust and foreign particles, making the dust more visible. This is why dirt appears more noticeable on a black strap;
2. The white strap, made of antibacterial TPU material, is more likely to show stains, particularly from substances like ink, dyes, or food. In daily use, it's best to avoid contact with such materials;
3. If the strap gets dirty, you can clean it using gentle cleaning agents like laundry detergent or soapy water. For stubborn stains, please clean the strap regularly.