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Smoke & CO Detectors · Head to head

Aqara Smart Smoke Detector vs X-Sense Wi-Fi Carbon Monoxide Alarm

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Aqara and X-Sense sites.
2026 verdict
Smoke sensor versus carbon monoxide alarm: these two guard against different hazards, and the X-Sense Wi-Fi Carbon Monoxide Alarm takes the win with its LCD readout and longer warranty.
X-Sense Wi-Fi Carbon Monoxide Alarm
Winner
X-Sense Wi-Fi Carbon Monoxide Alarm
Buy on Amazon UKCheck price
It shows the live CO level on its screen, connects straight to 2.4 GHz Wi-Fi for phone alerts, is backed for 5 years against 1 year for the Aqara, and owners rate it slightly better. The Aqara Smart Smoke Detector wins on smart home reach: through a Zigbee hub it works with Apple HomeKit, Matter, SmartThings and Home Assistant, and Alexa and Google Home through an Aqara hub, and it can drive automations, which the X-Sense cannot. The catch is that neither replaces the other: the Aqara detects smoke only and the X-Sense detects carbon monoxide only. Buy the X-Sense Wi-Fi Carbon Monoxide Alarm for a home with gas appliances or a wood stove, the Aqara Smart Smoke Detector for smoke alerts inside an Aqara, HomeKit or Home Assistant setup, and both if you need full coverage.
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FeatureAqara Smart Smoke DetectorX-Sense Wi-Fi Carbon Monoxide AlarmWinner
Rating4.34.6X-Sense Wi-Fi Carbon Monoxide Alarm
Warranty1 year5 yearsX-Sense Wi-Fi Carbon Monoxide Alarm
Battery Life10 years1 yearAqara Smart Smoke Detector
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterHome AssistantAqara Smart Smoke Detector
ScreenNOYESX-Sense Wi-Fi Carbon Monoxide Alarm
ConnectivityZigbee2.4 GHz WiFiTie
SensorsSmokeCOTie
AlertsFire Alerts, Low Battery AlertsCO Alerts, Low Battery AlertsTie
Built-in SirenYESYESTie
Built-in LightYESYESTie
Tests ItselfNONOTie
PathlightNONOTie

What the differences mean

What it detects

This is the difference that decides it. The Aqara Smart Smoke Detector senses smoke and raises fire alerts, the X-Sense Wi-Fi Carbon Monoxide Alarm senses carbon monoxide and raises CO alerts. Neither covers the other hazard.

Connection

The Aqara Smart Smoke Detector is Zigbee only and needs a hub to reach your phone. The X-Sense Wi-Fi Carbon Monoxide Alarm connects to 2.4 GHz Wi-Fi on its own, so it works with nothing more than its app.

Smart home and automations

The Aqara Smart Smoke Detector works with Apple HomeKit, Matter, SmartThings and Home Assistant, with Alexa and Google Home through an Aqara hub, and can trigger automations. The X-Sense Wi-Fi Carbon Monoxide Alarm lists Home Assistant only and runs no automations.

Screen

The X-Sense Wi-Fi Carbon Monoxide Alarm has an LCD that shows the current CO reading, so you can see the level at a glance instead of waiting for the alarm. The Aqara Smart Smoke Detector has no display.

Warranty

X-Sense covers its CO alarm for 5 years, Aqara covers its smoke detector for 1 year.

Which one to buy if

What owners say

The two groups praise the same things in different words: a loud siren and a setup that takes minutes. Aqara Smart Smoke Detector owners talk about their smart home, pairing it with Home Assistant or an Aqara hub and wiring smoke alerts into lights, locks and linked alarms, and several mention it not going off over kitchen steam. Their main complaint is battery life far short of the rated decade, sometimes within months, plus weak Zigbee range for a few. X-Sense Wi-Fi Carbon Monoxide Alarm owners care about peace of mind around boilers and stoves: the live CO reading on the screen, phone alerts while away and a freestanding design that needs no wall. Their complaints are milder, an app not translated for every market and notifications that can lag slightly behind the screen.

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.

  • Aqara Smart Smoke Detector
  • X-Sense Wi-Fi Carbon Monoxide Alarm

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Frequently Asked Questions

Does the Aqara Smart Smoke Detector detect carbon monoxide?

No. The Aqara Smart Smoke Detector senses smoke only and has no CO sensor or CO alerts. For carbon monoxide you need a dedicated CO alarm such as the X-Sense Wi-Fi Carbon Monoxide Alarm, which detects CO but not smoke.

Which is better: Aqara Smart Smoke Detector or X-Sense Wi-Fi Carbon Monoxide Alarm?

The X-Sense Wi-Fi Carbon Monoxide Alarm comes out ahead on its LCD, its 5-year warranty and its owner feedback, but the two detect different hazards. The Aqara Smart Smoke Detector is the pick for smoke detection inside a HomeKit, Matter or Home Assistant smart home.

Does the X-Sense Wi-Fi Carbon Monoxide Alarm work with Aqara or HomeKit?

No. The X-Sense Wi-Fi Carbon Monoxide Alarm lists Home Assistant as its only smart home integration, with no Apple HomeKit, Alexa, Google Home, SmartThings or Matter. The Aqara Smart Smoke Detector is the one of the two that works with Apple HomeKit and Matter.

Do I need a hub for these alarms?

For the Aqara Smart Smoke Detector, yes: it is Zigbee only and needs a hub for phone alerts and automations. The X-Sense Wi-Fi Carbon Monoxide Alarm needs no hub, since it connects to 2.4 GHz Wi-Fi directly.

Who should buy the Aqara Smart Smoke Detector?

Anyone already running an Aqara hub, Home Assistant, HomeKit or Matter who wants smoke detection tied into automations. Owners of the Aqara Smart Smoke Detector should plan to watch its battery level through the hub, since many report it draining faster than rated.

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