Full Smart Door & Window Sensors comparison in 2026
Join Prime to buy it at $16.99
Join Prime to buy it at C$24.66
Also sold in packs
New releases and the smart home news worth knowing, in your inbox.
No spam. Unsubscribe in one click.
| Feature | Aqara Door and Window Sensor | Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor | Winner |
|---|---|---|---|
| Rating | 4.4 | 3.7 | Aqara Door and Window Sensor |
| Alerts | Door & Window Open/Close Alerts, Tamper Alerts | Door & Window Open/Close Alerts, Low Battery Alerts | Aqara Door and Window Sensor |
| Warranty | 1 year | 1 year | Tie |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Zigbee | Zigbee | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Sensors | Door & Window Open/Close | Door & Window Open/Close | Tie |
The Aqara Door and Window Sensor sends everything, including Google Home, Alexa, Apple Home and Matter, through an Aqara hub. The Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor lists Google Home, Alexa and SmartThings as supported through a Zigbee hub of your choice, and Apple Home and Matter through a SONOFF hub. Both work with Home Assistant.
The Aqara Door and Window Sensor is 41 x 22 x 11 mm, while the Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor is 47 x 27 x 13.5 mm with a 32 x 15.6 x 13 mm magnet. Both are small, but the Aqara is the one that disappears on a white frame.
The Aqara Door and Window Sensor takes a CR1632 and is rated for 2 years. The Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor takes a CR2032 with no rating listed, but it does list low-battery alerts.
The Aqara Door and Window Sensor lists tamper alerts through its hub. The Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor lists no tamper alert but keeps 90 days of history.
The Aqara Door and Window Sensor pairs with the hub you have and owners rate its battery life and looks highly.
The Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor pairs directly with ZHA, Hubitat and SmartThings, with no brand hub.
Owners of the Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor report drop-outs and re-pairing after a few months, which owners of the Aqara Door and Window Sensor mostly do not.
The Aqara Door and Window Sensor lists tamper alerts through its hub, and the Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor lists none.
Owners of both sensors like the same basics: an adhesive install, fast open and close detection with no false alarms when connected, and easy automations through Home Assistant and voice assistants. Aqara Door and Window Sensor owners single out its tiny, nearly invisible body, a coin cell that commonly lasts one to two years and its low price. Their warnings are the need for an Aqara hub, sensors that lock up on mixed ZHA networks with third-party repeaters and trouble registering closed on metal doors. Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor owners praise how quickly it pairs with SmartThings, Hubitat or ZHA, sometimes to an Echo with a Zigbee radio. Their complaints are sensors dropping offline after a few months and needing to be re-paired, a flimsy case, a loose battery holder and an included battery of unknown brand.
The Aqara Door and Window Sensor. It has the stronger owner record, a rated 2 year battery, a smaller body and a tamper alert, and it is also the lower priced of the two in the data. The Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor is a fair budget choice on an existing Zigbee mesh.
The hub they expect. The Aqara Door and Window Sensor is built for an Aqara hub, while the Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor pairs with generic Zigbee coordinators such as SmartThings, Hubitat and ZHA.
Yes, both list Home Assistant support. Owners report the Sonoff pairing in seconds over ZHA, while the Aqara Door and Window Sensor works best behind an Aqara hub or in Zigbee2MQTT and can lock up on mixed ZHA networks.
The reviews favor the Aqara Door and Window Sensor. Owners of the Sonoff SNZB-04 ZigBee Wireless Door/Window Sensor report units dropping offline after a few months and a loose battery holder, though many run for months without problems.
Aqara hub and HomeKit households, Zigbee2MQTT users and anyone who wants a tiny sensor with long battery life.
Home Assistant, Hubitat or SmartThings users who want cheap contact sensors for non-critical doors and can swap in a name-brand battery.
You are looking at two of them. The full table lines up all Door & Window Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
