Does the Xiaomi Smart Camera start recording video when it detects a person or object moving?

Yes. The Xiaomi Home Secure features intelligent 24-hour real-time monitoring technology. In the area covered by the camera, it will automatically start recording and encrypting the uploaded footage to the Xiaomi Home Secure in the Mi Home/Xiaomi Home APP whenever it detects a person, pet, or object moving, even with the slightest motion.
Note:
1. It does not record when the camera detects no movement in the environment;
2. Low-power devices will not increase the recording time, but only the number of recording days, such as Mi Wireless Outdoor Security Camera 1080p.