Aeotec Recessed Door Sensor 7 vs Ring Window and Door Contact Sensor (2nd gen)

The Ring Window and Door Contact Sensor (2nd gen) is better overall. It is more affordable, carries a higher owner rating, and supports more integrations such as Alexa, IFTTT and Home Assistant. The Aeotec Recessed Door Sensor 7's edge is purely its hidden, recessed installation.

Install style. The Ring Window and Door Contact Sensor (2nd gen) is a slim, surface-mount peel-and-stick sensor, while the Aeotec Recessed Door Sensor 7 buries itself inside the door and jamb to stay invisible when closed. Both are Z-Wave and require a hub, and the Ring also needs a Ring Alarm base station.

The Ring Window and Door Contact Sensor (2nd gen). It is peel-and-stick, pairs in minutes, and gets about 3 years from its CR2032 cells. The Aeotec Recessed Door Sensor 7 needs drilling, strip-prone screws, and full removal to change its battery, and its battery life is unpredictable.

Buy the Aeotec Recessed Door Sensor 7 if a hidden, flush install on a wooden door is your priority and you run a Z-Wave hub like SmartThings, Hubitat, Home Assistant or Fibaro. It is one of few recessed options, provided you accept the fiddlier setup and battery risk.

Buy the Ring Window and Door Contact Sensor (2nd gen) if you have or are building a Ring Alarm system and want simple, affordable, reliable door and window coverage. It installs in minutes, alerts instantly, and lasts years, though it needs a flat mounting surface.