Winner
Updated November 2026
Data from the official Aeotec and Ecobee sites.
2026 verdict
Chasing the longest possible battery life?
The Aeotec Multipurpose Sensor is still the better all-around pick of this pair, cheaper than the Ecobee SmartSensor for Doors & Windows, rated higher by owners and reaching more platforms without needing a specific thermostat. It works with any Zigbee hub, including SmartThings, Hubitat or Home Assistant, and adds temperature and vibration sensing on top of contact. The Ecobee SmartSensor for Doors & Windows answers with a battery rated around 3 years against the Aeotec's roughly 1 year, plus occupancy sensing, but it only pairs with an ecobee thermostat and gates its extra features behind a subscription. Choose the Aeotec Multipurpose Sensor for a versatile sensor on an existing Zigbee hub, and the Ecobee SmartSensor for Doors & Windows only if you already own an ecobee thermostat.
Connectivity
vs
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Aeotec Multipurpose Sensor | Ecobee SmartSensor for Doors & Windows | Winner |
|---|---|---|---|
| Price | $38.99 | $59.69 | Aeotec Multipurpose Sensor |
| Rating | 4.5 | 4.2 | Aeotec Multipurpose Sensor |
| Battery Life | 1 year | 3 years | Ecobee SmartSensor for Doors & Windows |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit | Aeotec Multipurpose Sensor |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Zigbee | 2.4 GHz WiFi | Tie |
| Sensors | Door & Window Open/Close, Temperature | Door & Window Open/Close, Occupancy | Tie |
| Alerts | Door & Window Open/Close Alerts, Temperature Alerts | Door & Window Open/Close Alerts, Motion Alerts | Tie |
What the differences mean
Standalone or tied to a thermostat
The Aeotec Multipurpose Sensor works with any Zigbee hub, such as SmartThings, Hubitat or Home Assistant. The Ecobee SmartSensor for Doors & Windows only pairs with an ecobee thermostat, and its Google Home, Alexa and Apple HomeKit access all route through that thermostat.
Extra sensing
The Aeotec Multipurpose Sensor adds temperature sensing and vibration detection. The Ecobee SmartSensor for Doors & Windows adds occupancy detection instead, useful for knowing whether someone is near the door.
Battery life
The Ecobee SmartSensor for Doors & Windows's CR2477 is rated around 3 years. The Aeotec Multipurpose Sensor's CR2450 is rated about 1 year.
Price
The Aeotec Multipurpose Sensor is the more affordable of the two, which matters if you are covering several doors and windows at once rather than pairing a single sensor with one thermostat.
Subscription
The Ecobee SmartSensor for Doors & Windows's occupancy and security features need an ecobee Smart Security subscription to unlock. The Aeotec Multipurpose Sensor's features come with no ongoing cost.
Which one to buy if
- you already run a Zigbee hub like SmartThings or Home Assistant
The Aeotec Multipurpose Sensor plugs straight in with no thermostat required.
- you own an ecobee thermostat and want to pause HVAC on an open door
The Ecobee SmartSensor for Doors & Windows pairs with it directly for exactly that automation.
- you want the longest time between battery changes
The Ecobee SmartSensor for Doors & Windows is rated around 3 years against the Aeotec's roughly 1 year.
- you want temperature and vibration sensing with no subscription
The Aeotec Multipurpose Sensor's features all work with no ongoing fee.
Winner
$38.99
- + Price: $38.99
- + Rating: 4.5
- + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
- - Battery Life: 1 year vs 3 years
$59.69
- + Battery Life: 3 years
- - Price: $59.69 vs $38.99
- - Rating: 4.2 vs 4.5
What owners say
Owners of both sensors say the basic open and close alert is dependable once paired. Aeotec Multipurpose Sensor owners like that it tolerates a wide or misaligned gap and use its extra temperature and vibration reading for automations like an appliance-done alert, but many say the CR2450 battery drains faster than expected and that SmartThings shows it as two separate devices. Ecobee SmartSensor for Doors & Windows owners most often mention pausing the furnace or air conditioner automatically when a door is left open, and they like the long battery life and clear status in the app, though many are frustrated that occupancy and security features sit behind an ecobee Smart Security subscription.
Frequently Asked Questions
Which is better overall: Aeotec Multipurpose Sensor or Ecobee SmartSensor for Doors & Windows?
The Aeotec Multipurpose Sensor, on a lower price, a higher owner rating and broader platform reach. The Ecobee SmartSensor for Doors & Windows counters with a much longer battery life and occupancy sensing.
What is the biggest difference between the Aeotec Multipurpose Sensor and the Ecobee SmartSensor for Doors & Windows?
Independence. The Aeotec Multipurpose Sensor works with any Zigbee hub, while the Ecobee SmartSensor for Doors & Windows only pairs with an ecobee thermostat.
Which sensor has the longer battery life?
The Ecobee SmartSensor for Doors & Windows, rated around 3 years against about 1 year for the Aeotec Multipurpose Sensor.
Does the Ecobee SmartSensor for Doors & Windows work without an ecobee thermostat?
No. It is not standalone and requires an ecobee thermostat to function, unlike the Aeotec Multipurpose Sensor, which only needs a Zigbee hub.
Who should buy the Aeotec Multipurpose Sensor?
Owners of an existing Zigbee hub who want a cheaper, higher-rated sensor that also reads temperature and detects vibration, with no subscription.
Who should buy the Ecobee SmartSensor for Doors & Windows?
Existing ecobee thermostat owners who want occupancy sensing and to automatically pause HVAC when a door is left open.
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