How do I optimize the motion detection?

Answer: PIR sensors work optimally when the subject of detection passes across their front. The more the object must "cross" the front of the video doorbell the better the detection reliability. When placing your video doorbell try to avoid situations where the subject would move straight toward the video doorbell if possible. You may need to experiment with the sensitivity settings in the app and video doorbell placement to get the ideal mix of detection and battery life as too much sensitivity can reduce battery life.