Door & Window Sensors · Head to head

Ecobee SmartSensor for Doors & Windows vs Eufy Entry Sensor

Full Smart Door & Window Sensors comparison in 2026

Updated October 2026
Data from the official Ecobee and Eufy sites.
2026 verdict
Warranty, battery and reach favour the Ecobee SmartSensor for Doors & Windows over the Eufy Entry Sensor in this pairing of ecosystem-bound contact sensors.
Ecobee SmartSensor for Doors & Windows
Winner
Ecobee SmartSensor for Doors & Windows
$49.99$59.9917% OFF
Buy on Amazon USA
It carries a 3-year warranty against 1, is rated for 3 years per battery against 2, adds an occupancy sensor and reaches Google Home, Alexa and Apple Home through an ecobee thermostat. The Eufy Entry Sensor is cheaper and well liked by owners, triggers eufy sirens, chimes and camera recording through a HomeBase with no monthly fee, and works with Home Assistant, which the ecobee does not. Neither is a standalone sensor. Choose the Ecobee SmartSensor for Doors & Windows in an ecobee home, and the Eufy Entry Sensor to extend a eufy Security system.
Works with
Connectivity
  • Wi-Fi 2.4 GHz
vs
Works with
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureEcobee SmartSensor for Doors & WindowsEufy Entry SensorWinner
Price$49.99$29.99Eufy Entry Sensor
Rating4.24.6Eufy Entry Sensor
Warranty3 years1 yearEcobee SmartSensor for Doors & Windows
Battery Life3 years2 yearsEcobee SmartSensor for Doors & Windows
IntegrationsGoogle Home, Alexa, Apple HomeKitHome AssistantEcobee SmartSensor for Doors & Windows
SensorsDoor & Window Open/Close, OccupancyDoor & Window Open/CloseEcobee SmartSensor for Doors & Windows
AlertsDoor & Window Open/Close Alerts, Motion AlertsDoor & Window Open/Close AlertsEcobee SmartSensor for Doors & Windows
Weather ResistanceNONOTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie

What the differences mean

What it depends on

The Ecobee SmartSensor for Doors & Windows needs an ecobee thermostat and connects over 2.4 GHz Wi-Fi. The Eufy Entry Sensor needs a eufy HomeBase, which it reaches over a sub-1 GHz link, and the HomeBase handles the Wi-Fi.

Subscription

Motion alerts on the ecobee sensor require a subscription, and owners say arming and occupancy alerts do too. The Eufy Entry Sensor's alarm, chime and camera triggers run on the HomeBase with no monthly fee.

Smart home reach

Through the thermostat, the Ecobee SmartSensor for Doors & Windows reaches Google Home, Alexa and Apple Home. The Eufy Entry Sensor works with Home Assistant only; Alexa, Google Home and Apple Home do not see it.

Battery and warranty

The ecobee sensor is rated for 3 years on a CR2477 cell with a 3-year warranty. The Eufy Entry Sensor is rated for 2 years on a CR123A with a 1-year warranty.

Occupancy

Only the Ecobee SmartSensor for Doors & Windows adds occupancy detection, with a 120 degree view and 16 ft range.

Which one to buy if

What owners say

Owners of both sensors praise quick, reliable open and close alerts and an easy adhesive install, and both groups accept that the sensor only works inside its own brand's system. Ecobee SmartSensor for Doors & Windows owners single out the thermostat pausing heating or cooling when a door is open, and their main complaint is that motion, arming and occupancy alerts need an ecobee Smart Security subscription. Eufy Entry Sensor owners single out the opposite: sirens, chimes and camera recordings triggered with no monthly fee, a CR123A cell that lasts years, and a flexible app with home, away and night modes; their complaints are no HomeKit, Alexa or Google support, an app that can break after updates and a flimsy magnet housing.

Frequently Asked Questions

Which is better overall: Ecobee SmartSensor for Doors & Windows or Eufy Entry Sensor?

The Ecobee SmartSensor for Doors & Windows, with a longer warranty, a longer battery rating, occupancy sensing and voice assistant reach through the ecobee thermostat. The Eufy Entry Sensor is the better and cheaper pick for a eufy Security system.

What is the biggest difference between the Ecobee SmartSensor for Doors & Windows and the Eufy Entry Sensor?

The system around it. The Ecobee SmartSensor for Doors & Windows works with an ecobee thermostat for heating and security, while the Eufy Entry Sensor works with a eufy HomeBase for alarms, chimes and camera triggers.

Do the Ecobee SmartSensor for Doors & Windows and the Eufy Entry Sensor need a subscription?

The Eufy Entry Sensor needs none for its alarm and camera triggers. The Ecobee SmartSensor for Doors & Windows gives free open and close alerts, but motion alerts require a subscription and owners report arming and occupancy alerts are paid as well.

Do the Ecobee SmartSensor for Doors & Windows and the Eufy Entry Sensor work with Home Assistant?

Only the Eufy Entry Sensor. The Ecobee SmartSensor for Doors & Windows is not exposed by Home Assistant's ecobee integration.

Who should buy the Ecobee SmartSensor for Doors & Windows?

Ecobee thermostat owners who want HVAC to pause on an open window, occupancy sensing and a 3-year warranty.

Who should buy the Eufy Entry Sensor?

Eufy Security owners with a HomeBase who want doors and windows to trigger sirens, chimes and cameras without a monthly fee.

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