1. The software did not start normally. This may be a fault in the internal software or sensor of the mobile phone, or it may be a problem of Xiaomi Sports Women's Health Application itself.
2. There is something wrong with data monitoring. If the application is abnormal during operation, or the body data cannot be accurately monitored, this may cause the application to fail to provide accurate prediction.
3. The placement position is incorrect. If the mi band or Xiaomi Smart Tracker is placed in an incorrect position or is not worn correctly according to the instructions, it may also lead to inaccurate data monitoring, thus affecting the accuracy of prediction.
To solve this problem, you can try to restart the application, or put the device in the correct location and wear it correctly according to the instructions. If the problem still exists, it is recommended to contact Xiaomi customer service or manufacturer for more detailed help and guidance.