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Door & Window Sensors · Head to head

Eufy Entry Sensor vs Sonoff DW2-WIFI

Full Smart Door & Window Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Eufy and Sonoff sites.
2026 verdict
Which one works on its own? The Sonoff DW2-WIFI, and that makes it the better contact sensor here than the Eufy Entry Sensor.
Sonoff DW2-WIFI
Winner
Sonoff DW2-WIFI
$12.23
Buy on Amazon USACheck price
It joins 2.4 GHz Wi-Fi with no hub, costs less, works with Google Home, Alexa and Home Assistant, keeps 90 days of history and sends low-battery alerts. The Eufy Entry Sensor is the better liked of the two and shines inside a eufy Security system, where a HomeBase lets it trigger sirens, chimes and camera recordings with no monthly fee, on a CR123A cell rated for 2 years. Both are indoor sensors with a 1-year warranty and no Apple Home or Matter support. Buy the Sonoff DW2-WIFI for a hub-free sensor with voice assistant support, and the Eufy Entry Sensor to extend a eufy HomeBase setup.
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FeatureEufy Entry SensorSonoff DW2-WIFIWinner
Price$29.99$12.23Sonoff DW2-WIFI
Rating4.63.8Eufy Entry Sensor
Connectivity2.4 GHz WiFi2.4 GHz WiFi, BluetoothSonoff DW2-WIFI
IntegrationsHome AssistantGoogle Home, Alexa, Home AssistantSonoff DW2-WIFI
Warranty1 year1 yearTie
Weather ResistanceNONOTie
SensorsDoor & Window Open/CloseDoor & Window Open/CloseTie
AlertsDoor & Window Open/Close AlertsDoor & Window Open/Close Alerts, Low Battery AlertsTie

What the differences mean

What it needs

The Sonoff DW2-WIFI connects directly to a 2.4 GHz router, using Bluetooth only to pair. The Eufy Entry Sensor talks to a eufy HomeBase over a sub-1 GHz link and does nothing without one.

Voice assistants

The Sonoff works with Google Home and Alexa. The Eufy Entry Sensor works with neither, because eufy's skill does not expose HomeBase sensors. Both work with Home Assistant.

What a door opening can trigger

Through the HomeBase, the Eufy Entry Sensor can sound the HomeBase and camera sirens, play a chime and start camera recording, all without a subscription. The Sonoff DW2-WIFI sends app alerts and drives eWeLink, Google and Alexa automations instead.

Battery

The Eufy Entry Sensor is rated for 2 years on a CR123A. The Sonoff DW2-WIFI uses two AAA cells with an undocumented life, and it sends a low-battery alert.

Which one to buy if

What owners say

Owners of both sensors report reliable open and close detection once installed, and both groups like being able to reposition the adhesive while aligning the magnet. Eufy Entry Sensor owners single out how it ties into eufy cameras and sirens with no subscription, a 1 to 2 second response and a battery that lasts years; they complain about no HomeKit, Alexa or Google support, an app that can break after updates and a flimsy magnet housing. Sonoff DW2-WIFI owners like skipping the hub and use it for mailbox and garage alerts, with cheap AAA batteries; their complaints are pairing errors on modern routers until the Wi-Fi b protocol is enabled, a magnet that needs a very small gap and, for some, batteries that drain in days.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Eufy Entry Sensor
  • Sonoff DW2-WIFI

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Frequently Asked Questions

Which is best: Eufy Entry Sensor or Sonoff DW2-WIFI?

The Sonoff DW2-WIFI as a standalone sensor, because it needs no hub, costs less and works with Google Home, Alexa and Home Assistant. The Eufy Entry Sensor is best inside a eufy Security system, where a HomeBase turns it into an alarm trigger.

What is the biggest difference between the Eufy Entry Sensor and the Sonoff DW2-WIFI?

The Eufy Entry Sensor needs a eufy HomeBase, while the Sonoff DW2-WIFI connects directly to Wi-Fi with no hub.

Does the Eufy Entry Sensor work with Alexa or Google Home?

No. The Eufy Entry Sensor is not exposed to Alexa, Google Home or Apple Home, though it works with Home Assistant. The Sonoff DW2-WIFI works with Alexa, Google Home and Home Assistant.

Do the Eufy Entry Sensor and the Sonoff DW2-WIFI need a subscription?

No. The Eufy Entry Sensor triggers eufy sirens, chimes and cameras through a HomeBase with no monthly fee, and the Sonoff DW2-WIFI works in the free eWeLink app with 90 days of history.

Who should buy the Eufy Entry Sensor?

Eufy Security owners with a HomeBase who want doors and windows tied into their cameras and sirens without a subscription.

Who should buy the Sonoff DW2-WIFI?

Budget buyers who want a hub-free Wi-Fi sensor with Google Home, Alexa and Home Assistant support, and who can handle a fiddly first pairing.

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