What's wrong with the Huawei bracelet's heart rate measurement in sports mode?

Heart rate monitoring is affected by a variety of factors, including the environment, wear, etc. If you find that your heart rate measurement data is inaccurate during use, it may be related to the following: 1. When you are not wearing the bracelet or wearing it loosely, the bracelet and your wrist do not fit well together, and the pulse signal from your wrist cannot be recognized. 2. Please make sure you wear it correctly, and the bracelet fits comfortably with the skin of your wrist (wear it slightly tighter), and remember not to wear it on the wrist bone joints.

2. Please make sure the heart rate sensor on the back of the device is clean, dry, and free of foreign objects. If you sweat a lot during exercise, the bracelet may slide around, or sweat may block the measurement path, which may result in inaccurate heart rate measurement. In this case, please dry the sweat and readjust the wearing position. Or push upward to restore the tight wearing state.

3. Please make sure that the measurement arm position is not covered by scars, tattoos or excessive sweat, which may cause the heart rate monitoring sensor to fail to accurately collect heart rate information.

4. If the ambient temperature is low, the human body's blood flow at the wrist becomes low, which may lead to a deviation in heart rate measurement.

5. Regular exercise (e.g. running, walking, cycling, etc.) is easier to measure heart rate accurately, while irregular exercise (e.g. playing ball games, free time activities) and wrist-strengthening exercise (e.g. lifting weights) may result in inaccurate heart rate measurement. Please select the correct type of exercise for heart rate measurement through the bracelet.

6. If you find the heart rate measurement is not normal, please flatten your wrist and stand still for more than 10s, the heart rate measurement will return to normal.

7.