Shelly Motion 2

Took me under two minutes to stick it on the wall with the included sticker, and the fact that it connects straight to Wi-Fi without needing a hub is a huge relief. The tiny size means it's basically invisible in my hallway, yet it catches every movement.

The flexible holder is genius—I angled it toward the hallway and it picks up every movement without blind spots. Tiny enough to sit flush on the wall, and the Wi-Fi connection hasn’t dropped once since I mounted it.

Setup took me under five minutes thanks to the wall sticker, and the tiny footprint means it disappears into the corner of my hallway. The Wi-Fi connection has been rock solid for two weeks now, which is more than I can say for my last sensor.