Just because someone is seen by your video doorbell does not mean that the device will detect them and alert you. Ring says the standard maximum motion detection range for its devices is about 30 feet (9 meters), but if the object is much bigger than a person, such as a car passing by, it can still trigger an alert from farther away.

Still, maximum distances for these products aren't guaranteed. Some companies' video doorbells have much shorter published ranges than Ring, which we'll explore below, and capabilities can fall short of a maximum advertised range depending on a camera's sensitivity, mounting location and surroundings. Someone may be visible during live view, but not trigger a motion event because detection is based on more than what the camera can see. The sensor, camera angle, directional movement and software settings all factor in.

According to eufy, its Video Doorbell can reliably detect horizontal motion up to 15 feet away and vertical motion up to 5 feet away. Arlo lists a maximum motion detection range of 13 feet for its second-generation Video Doorbell, while the Essential wired and wire-free models are listed at 16 feet. According to TELUS, the doorbell's motion sensor works best within 8 feet.

However, it's not just about distance. Even at its most sensitive setting, TELUS says its doorbell's motion sensor requires continuous movement for seven seconds or more to trigger a clip. Ring does not state a single per-model maximum for every current doorbell on its general motion settings page.

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