Aqara Door and Window Sensor P2 vs Ecobee SmartSensor for Doors & Windows

It depends on your setup. The Ecobee SmartSensor for Doors & Windows wins on rating, warranty, battery life and occupancy sensing for ecobee thermostat owners, while the Aqara Door and Window Sensor P2 is cheaper and far more open, with Matter over Thread and no subscription.

Ecosystem and cost of ownership. The Ecobee SmartSensor for Doors & Windows requires an ecobee thermostat and locks most security features behind a monthly subscription, while the Aqara Door and Window Sensor P2 runs Matter over Thread with no dedicated hub and no subscription across HomeKit, Google, Alexa and more.

The Ecobee SmartSensor for Doors & Windows adds occupancy (motion) detection to door contact, useful for its ecobee automations, whereas the Aqara Door and Window Sensor P2 is a contact-only sensor. However, the ecobee's occupancy alerts require an ecobee Smart Security subscription.

The Aqara Door and Window Sensor P2. It pairs over Matter to a Thread border router such as an Apple TV or HomePod with no subscription, while the Ecobee SmartSensor for Doors & Windows needs an ecobee thermostat and a Smart Security subscription for its full feature set.

Buy the Ecobee SmartSensor for Doors & Windows if you own an ecobee thermostat and want to pause heating or cooling on an open door, plus occupancy sensing, a 3-year warranty and long battery life. Budget for the Smart Security subscription for the security features.

Buy the Aqara Door and Window Sensor P2 if you want a cheaper, subscription-free sensor with no-hub Matter over Thread and wide platform support including HomeKit, Google, Alexa, SmartThings and Home Assistant, and you have a Thread border router.