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How to manage faces on Xiaomi Outdoor Camera CW400?

Mi Home App -> select the device -> click "..." in the upper right corner -> camera settings->->AI->Face Recognition->Make a note of the faces that have been recognised but not noted.
You can note the faces that have been recognised but not noted.
You need to buy cloud storage to realise the face recognition function.
Unannotated faces cannot be deleted, and annotated faces will be released and saved in the unannotated faces after deletion.