First Alert SC5 Battery Smart Smoke & CO Alarm vs X-Sense WiFi Smoke & CO Detector

The X-Sense WiFi Smoke & CO Detector wins overall on price, owner rating and its live-reading LCD screen, with the same core dual-hazard sensing. The First Alert SC5 Battery Smart Smoke & CO Alarm counters with a longer 10-year warranty, steam-check and Google Home integration.

Both detect smoke and carbon monoxide, so the biggest differences are extras. The X-Sense WiFi Smoke & CO Detector adds an LCD screen and a lower price, while the First Alert SC5 Battery Smart Smoke & CO Alarm adds steam-check, voice alerts, Google Home support and a longer 10-year warranty.

Yes. Both the First Alert SC5 Battery Smart Smoke & CO Alarm and the X-Sense WiFi Smoke & CO Detector combine a photoelectric smoke sensor with an electrochemical CO sensor, sending fire, CO and low-battery alerts from a single unit.

The X-Sense WiFi Smoke & CO Detector has an LCD screen showing live status, but no smart-home platform integration. The First Alert SC5 Battery Smart Smoke & CO Alarm has no screen but works with Google Home over Wi-Fi, so they trade a display for connectivity.

Buy the X-Sense WiFi Smoke & CO Detector if you want affordable, well-rated combined smoke and carbon monoxide coverage with an easy-to-read LCD screen and phone alerts, and you do not need deep smart-home integration.

Buy the First Alert SC5 Battery Smart Smoke & CO Alarm if you want combined smoke and CO detection with steam-check, voice alerts naming the danger, Google Home compatibility and a longer 10-year warranty.