If the Xiaomi 17 Ultra becomes warm when being used while charging, please refer to the following explanation:
1. When the device is in use, the processor and display operate continuously, generating heat during normal operation.
2. The Xiaomi 17 Ultra supports 90 W fast charging, which also produces heat during the energy conversion process.
3. Using the device while charging causes both operational heat and charging heat to accumulate, making the temperature feel higher.
4. Reducing device usage during charging can help improve the temperature experience.
5. The device undergoes strict charging and thermal safety testing before leaving the factory. This behavior is expected under combined usage conditions.