Kidde Smart Smoke & CO Detector with Ring vs X-Sense Wi-Fi Carbon Monoxide Alarm

Kidde Smart Smoke & CO Detector with Ring, because it detects smoke and carbon monoxide in one unit and connects to the Ring app and Alexa. X-Sense Wi-Fi Carbon Monoxide Alarm wins on price and adds a live-reading LCD, but it has no smoke detection and no smart home integrations.

No. X-Sense Wi-Fi Carbon Monoxide Alarm is a dedicated CO detector with no smoke sensor and no fire alerts, so it cannot replace a smoke alarm. Kidde Smart Smoke & CO Detector with Ring covers both hazards with a photoelectric smoke sensor and an electrochemical CO sensor.

X-Sense Wi-Fi Carbon Monoxide Alarm, on a large LCD that displays live CO concentration from 30 to 999 ppm. Kidde Smart Smoke & CO Detector with Ring has no screen, but it sends low-level CO alerts to the Ring app before a conventional alarm threshold is reached.

Both use 2.4 GHz Wi-Fi with no hub. Kidde Smart Smoke & CO Detector with Ring reports into the Ring app, works with Alexa devices and interconnects wirelessly with other Kidde alarms. X-Sense Wi-Fi Carbon Monoxide Alarm sends app alerts but supports no voice assistants, HomeKit, Matter or automations.

X-Sense Wi-Fi Carbon Monoxide Alarm stands freely on a shelf or table, which suits a boiler room, kitchen or garage with no drilling. Kidde Smart Smoke & CO Detector with Ring mounts on a ceiling or wall like a conventional alarm and runs on two included AA batteries.

Households with gas appliances, a wood stove or a boiler who want a dedicated CO monitor with a visible ppm readout, a 5 year warranty and a replaceable battery, at a lower price. It should sit alongside a smoke alarm, whereas Kidde Smart Smoke & CO Detector with Ring handles both jobs itself.