Version 10. X on the equipment page of the sports health App, click on the paired equipment:
10.0.4.309 and slide to the bottom of the page.
Unbind.
Version 10.0.4.309 and above, click on the upper right corner. Select Delete Device.
Version 9. X. Click the device icon in the upper right corner of the homepage of Huawei Health App, or on my page, enter the wearable product settings page, slide to the bottom and unbind.