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Smoke & CO Detectors · Head to head

Aqara Smart Smoke Detector vs Shelly Plus Smoke Alarm

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Aqara and Shelly sites.
2026 verdict
A smoke alarm is only as smart as the system it can talk to, and the Aqara Smart Smoke Detector talks to more of them than the Shelly Plus Smoke Alarm, with a battery rated to last twice as long.
Aqara Smart Smoke Detector
Winner
Aqara Smart Smoke Detector
€37.99€44.9916% OFF
Buy on Amazon GermanyCheck price
It works with Matter and Apple Home directly, SmartThings through Matter and Home Assistant, and its CR17450 cell is rated for 10 years against 5 years. The Shelly Plus Smoke Alarm is the better rated of the two, carries a 3 year warranty against 1 year and connects straight to 2.4 GHz Wi-Fi, so it needs no hub, where the Aqara requires a Zigbee hub and reaches Alexa and Google Home only through a Matter capable Aqara hub. Both detect smoke only, with no CO sensor, and both sound a siren of about 85 dB. Choose the Aqara Smart Smoke Detector for an Apple Home or Matter setup, and the Shelly Plus Smoke Alarm for a hub-free Wi-Fi alarm in a Google Home, SmartThings or Shelly home.
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FeatureAqara Smart Smoke DetectorShelly Plus Smoke AlarmWinner
Price€37.99€39.95Aqara Smart Smoke Detector
Rating4.34.4Shelly Plus Smoke Alarm
Warranty1 year3 yearsShelly Plus Smoke Alarm
Battery Life10 years5 yearsAqara Smart Smoke Detector
ConnectivityZigbee2.4 GHz WiFi, BluetoothShelly Plus Smoke Alarm
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Samsung SmartThings, Home AssistantAqara Smart Smoke Detector
ScreenNONOTie
SensorsSmokeSmokeTie
AlertsFire Alerts, Low Battery AlertsFire Alerts, Low Battery AlertsTie
Built-in SirenYESYESTie
Built-in LightYESYESTie
Tests ItselfNONOTie

What the differences mean

Hub or no hub

The Shelly Plus Smoke Alarm joins your Wi-Fi on its own. The Aqara Smart Smoke Detector is a Zigbee device and needs a Zigbee hub, and an Aqara hub with Matter if you want it in Alexa or Google Home. Without a hub already on the wall, the Shelly is the simpler buy.

Apple Home and Matter

The Aqara Smart Smoke Detector is a Matter device that works with Apple Home, and reaches SmartThings through Matter. The Shelly Plus Smoke Alarm supports neither Apple Home nor Matter, which rules it out for an Apple-first house.

Battery

The Aqara Smart Smoke Detector is rated for 10 years on its CR17450 cell, the Shelly Plus Smoke Alarm for 5 years on a CR123A. Aqara owners report real-world drain well short of that rating, so treat the gap as a spec, not a promise.

Warranty

Shelly covers the Shelly Plus Smoke Alarm for 3 years, Aqara the Aqara Smart Smoke Detector for 1 year. For a safety device you expect to leave on a ceiling for years, the longer cover is worth something.

Which one to buy if

What owners say

Owners of both alarms buy them for the same reason: smoke alerts that reach the phone and trigger other automations, and both groups praise a siren that is genuinely loud and a setup that takes minutes. Aqara Smart Smoke Detector owners single out how smoothly it joins Home Assistant or HomeKit and linking several units so one alarm sounds them all, and their main complaint is battery life that drains far faster than the box suggests, along with weak Zigbee range for a few. Shelly Plus Smoke Alarm owners like pairing over Wi-Fi with no extra hardware, MQTT for tinkering and the long battery rating, and they mention a short pairing window and, for a small minority, false alarms after months of use.

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
  • Shelly Plus Smoke Alarm

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Frequently Asked Questions

Aqara vs Shelly: which smoke detector is better?

The Aqara Smart Smoke Detector, for its Matter and Apple Home support and its 10 year battery rating. The Shelly Plus Smoke Alarm is better rated, has a 3 year warranty and needs no hub, which makes it the easier choice for a Wi-Fi only home.

What is the biggest difference between the Aqara Smart Smoke Detector and the Shelly Plus Smoke Alarm?

How they connect. The Aqara Smart Smoke Detector uses Zigbee and needs a hub, while the Shelly Plus Smoke Alarm uses 2.4 GHz Wi-Fi directly. That choice also decides the ecosystems: Matter and Apple Home for the Aqara, Wi-Fi integrations with Google Home and SmartThings for the Shelly.

Do the Aqara Smart Smoke Detector and the Shelly Plus Smoke Alarm detect carbon monoxide?

No. Both detect smoke only, with no CO sensor and no CO alerts, so either needs a separate carbon monoxide alarm.

Do they work with Alexa and Google Home?

The Shelly Plus Smoke Alarm works with Google Home directly, but not with Alexa, which has no device type for smoke alarms outside Matter. The Aqara Smart Smoke Detector reaches both through Matter over a Matter capable Aqara hub.

Who should buy the Aqara Smart Smoke Detector?

Apple Home, Matter and Home Assistant users who already have a Zigbee or Aqara hub and want smoke detection tied into their automations.

Who should buy the Shelly Plus Smoke Alarm?

Anyone without a hub who wants a Wi-Fi smoke alarm that works with Google Home, SmartThings and Home Assistant, backed by a 3 year warranty.

Full comparison table

Compare all 24 Smoke & CO Detectors side by side

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