Aqara Smart Smoke Detector vs First Alert SMCO410 Smoke Detector & CO Alarm

The First Alert SMCO410 Smoke Detector & CO Alarm is the stronger safety device overall because it detects both smoke and carbon monoxide, filters steam to cut false alarms, and carries a 10-year warranty. The Aqara Smart Smoke Detector is the more affordable and better-rated option with wider smart-home integrations, but it senses smoke only.

The core difference is that the First Alert SMCO410 Smoke Detector & CO Alarm adds carbon monoxide detection and connects over Z-Wave (working with Ring and Home Assistant), while the Aqara Smart Smoke Detector is a smoke-only Zigbee unit that reaches Apple HomeKit, Home Assistant, IFTTT and Matter through a hub.

No. The Aqara Smart Smoke Detector is a smoke and fire detector only and has no CO sensor. The First Alert SMCO410 Smoke Detector & CO Alarm adds a carbon monoxide sensor, so it can alert to both smoke and CO from a single device.

The Aqara Smart Smoke Detector fits more ecosystems, supporting Apple HomeKit, Home Assistant, IFTTT and Matter over Zigbee, plus a built-in color LED. The First Alert SMCO410 Smoke Detector & CO Alarm uses Z-Wave and works with Home Assistant and the Ring Base Station, a narrower but safety-focused integration path.

Buy the First Alert SMCO410 Smoke Detector & CO Alarm if you want one unit that covers both smoke and carbon monoxide, run a Z-Wave or Ring setup, and value steam-check nuisance-alarm filtering plus a 10-year warranty.

Buy the Aqara Smart Smoke Detector if you already have a Zigbee, Apple HomeKit, Home Assistant or Matter home, want the more affordable and better-rated unit with a built-in LED, and are content with smoke-only detection tied into automations.