Google Nest Protect (Wired) vs X-Sense WiFi Smoke & CO Detector

The Google Nest Protect (Wired) is the more capable pick: both sense smoke and carbon monoxide, but the Nest adds a full sensor suite, self-testing, a pathlight, Steam Check, Google Home and Home Assistant support and a higher owner rating. The X-Sense WiFi Smoke & CO Detector wins on price, a 5-year warranty and its LCD screen.

Yes. The Google Nest Protect (Wired) and the X-Sense WiFi Smoke & CO Detector each combine a smoke sensor with a carbon monoxide sensor, so either can stand in for both a smoke and a CO detector. The differences lie in the surrounding features.

Depth versus simplicity. The Google Nest Protect (Wired) brings self-test, a pathlight, Steam Check and smart home integration on mains power, while the X-Sense WiFi Smoke & CO Detector keeps it simple with an easy-to-read LCD, a longer warranty and no platform links.

The X-Sense WiFi Smoke & CO Detector has both: an LCD readout for at-a-glance status and a 5-year warranty. The Google Nest Protect (Wired) has no screen and a 2-year warranty, relying on app alerts and spoken warnings instead.

Buy the Google Nest Protect (Wired) if you have alarm wiring and want combined smoke and CO detection with smart features, spoken early warnings, self-testing and a pathlight, plus Google Home and Home Assistant control.

Buy the X-Sense WiFi Smoke & CO Detector if you want the same smoke-and-CO coverage for less, value a clear LCD readout and a 5-year warranty, and do not need self-testing or smart home platform integration.