Motion sensors are important for use in lighting, security, video doorbell, and more. In all cases, the most reliable motion sensors will be hard-wired or PoE, since they provide a constant power supply as well as uninterrupted communication.
Note that some wireless motion sensors have the option of receiving power over USB. Many wireless motion sensors behave more reliably when they are powered by USB power in this way, rather than by battery.
Indoor vs. Outdoor Sensors
Often times you may want to install motion sensors outdoors, on the exterior of a home. Devices installed outdoors should be resistant to water damage.
You can find the environmental rating of all devices in their detail pages in showroom. For example: This motion sensor is rated IP65 for outdoor environments.