Xiaomi bracelet 2 repeatedly writes iPhone "health" data.

Theoretically, the data sources in the health of iOS8 can be sorted. When there are multiple data sources, it will only read the data with the highest priority and there will be no duplication. Actually, I don't know which bug it is. According to my own use in the last six months, the sleep data of Xiaomi exercise can't be input into Health, and the step counting data overlaps with the data that comes with iPhone. After being sent to Health, the step counting data is cleared in Xiaomi exercise. The above phenomena will not necessarily reappear, and some will get better inexplicably. It may have been fixed in the latest version. However, I directly turned off all the rights of Xiaomi Sports in health.