If the Xiaomi 15 heats up when using the floating windows of the APPs, please refer to the following details:
1. Running multiple APPs in floating windows requires the CPU to process multiple tasks at once and the GPU to render multiple APP interfaces, increasing power consumption and heat;
2. Using the floating windows of the APPs involves the simultaneous running of multiple APPs, generating a high power consumption and an obvious temperature rise, which is normal;
3. Running floating windows while charging increases power consumption, which can make the phone heat up even more;
4. Before the phone leaves the factory, the phone has been strictly inspected, please feel free to use it.