Aqara Smart Smoke Detector vs Heiman Smart CO Alarm

The Heiman Smart CO Alarm edges ahead overall on integrations and alert breadth, while the Aqara Smart Smoke Detector wins on price and owner rating. Since they detect different hazards, the better pick depends on which one you actually need.

Hazard type. The Aqara Smart Smoke Detector only detects smoke and fire, while the Heiman Smart CO Alarm only detects carbon monoxide, so they are not interchangeable and many households will want both.

Yes, in different ways. The Aqara Smart Smoke Detector needs a Zigbee hub such as the Aqara Hub M3, while the Heiman Smart CO Alarm needs a Thread Border Router to enable its Matter-based smart home integrations.

The Heiman Smart CO Alarm, thanks to Matter over Thread, reaches Google Home, Alexa, Apple HomeKit, Samsung SmartThings and Home Assistant. The Aqara Smart Smoke Detector supports Apple HomeKit, Home Assistant, IFTTT and Matter, and reaches Google Home and Alexa through an Aqara hub.

Buyers who already run a Zigbee or Home Assistant setup and want an affordable, well-rated smoke sensor that can trigger automations like lights or locks when smoke is detected.

Households that need dedicated carbon monoxide monitoring, for example near a gas appliance, and want it to show up across Google Home, Alexa or Apple Home routines.