Does the camera have auto-tracking?

If your camera is a plug-in camera, it usually has an automatic tracking function. 

If your camera is powered by a solar panel, it usually does not have an automatic tracking function. Because the automatic tracking function will greatly consume the battery power of the camera, so most solar cell cameras do not have this function. While the camera does not track objects automatically, it does send alert notifications to your phone upon detecting motion. This allows you to open the app and manually pan/tilt the camera to follow the activity.

(You can check the details in the product link to confirm whether it has auto-tracking.)