Kidde Smart Smoke & CO Detector with Ring vs X-Sense WiFi Smoke & CO Detector

Kidde Smart Smoke & CO Detector with Ring, thanks to its wire-free interconnect, free Ring app alerts, Alexa support and cooking nuisance-alarm filtering. X-Sense WiFi Smoke & CO Detector wins on price and adds an LCD screen and a built-in light, with the same two hazards covered.

Yes. Both combine a photoelectric smoke sensor with an electrochemical CO sensor. X-Sense WiFi Smoke & CO Detector uses a Figaro CO sensor rated for a ten year lifespan, while Kidde Smart Smoke & CO Detector with Ring adds low-level CO mobile alerts that trigger before a conventional alarm threshold.

Only Kidde Smart Smoke & CO Detector with Ring, whose wire-free interconnect makes every Kidde alarm in the home sound at once when one detects a hazard. X-Sense WiFi Smoke & CO Detector alerts through its own app but has no interconnect between units.

Neither is broadly compatible, but Kidde Smart Smoke & CO Detector with Ring at least works with the Ring app and Alexa devices. X-Sense WiFi Smoke & CO Detector has no Alexa, Google Home, HomeKit, SmartThings or Matter support and no automations, so it stays a standalone connected alarm.

X-Sense WiFi Smoke & CO Detector has an LCD that shows status on the unit itself, along with a built-in light. Kidde Smart Smoke & CO Detector with Ring has no screen and no night light, putting all of its information into the Ring app instead.

Buyers who want dual-hazard coverage at a lower price with an on-unit LCD, a replaceable CR123A cell and a 5 year warranty, and who do not need voice assistants or interconnected alarms. If linked alarms and Ring app alerts matter, Kidde Smart Smoke & CO Detector with Ring is the stronger option.