Aeotec Multipurpose Sensor vs Ecobee SmartSensor

The Ecobee SmartSensor rates higher overall for its intended job, adding occupancy detection, a 5-year battery life and broader ecosystem support. But it only functions as an accessory to an Ecobee thermostat. The Aeotec Multipurpose Sensor is the more affordable and more flexible standalone Zigbee device, working with SmartThings and Home Assistant and adding vibration and open/close sensing, so the better pick depends on whether you own an Ecobee thermostat.

Independence. The Aeotec Multipurpose Sensor is a self-contained Zigbee sensor that joins any compatible Zigbee hub, while the Ecobee SmartSensor has no general-purpose radio and only pairs with an Ecobee thermostat over a proprietary 915MHz link. The Aeotec also detects vibration and open/close, whereas the Ecobee adds occupancy detection.

No. The Ecobee SmartSensor communicates only with Ecobee thermostats and has no Wi-Fi, Zigbee, Z-Wave or Thread of its own, so it is useless without one. The Aeotec Multipurpose Sensor, by contrast, works over standard Zigbee with hubs like SmartThings or a Home Assistant coordinator.

The Ecobee SmartSensor is rated for around 5 years on its CR2477 coin cell, far longer than the Aeotec Multipurpose Sensor's roughly 1-year CR2450, so the Ecobee needs far fewer battery swaps.

Existing Ecobee thermostat owners with an unevenly heated or cooled home. Its occupancy detection and remote temperature reading let the thermostat prioritize occupied rooms, and its long battery life keeps upkeep minimal. It is not for anyone outside the Ecobee ecosystem.

SmartThings and Home Assistant users who want an affordable, hub-agnostic Zigbee sensor that covers door/window contact, vibration and tilt, plus a rough temperature reading. It is the more flexible choice for general automations, though it does not measure humidity or occupancy.