Smoke & CO Detectors · Head to head

Google Nest Protect (Battery) vs X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts

Full Smart Smoke & CO Detectors comparison in 2026

Updated August 2026
Data from Amazon and official Google and X-Sense sites.
2026 verdict
Google Nest Protect (Battery) wins the 2026 matchup against X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts, mainly on battery life, connectivity, and integrations.
It has the clearer edge on battery life, connectivity, and integrations, and it stays ahead on sensors and alerts. X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts is the better fit only for buyers who prioritize warranty and screen above everything else here. That is enough to make Google Nest Protect (Battery) the better pick for most buyers.
Price alerts

Smoke & CO Detector prices change while you decide

We check the price of every Smoke & CO Detector in the catalog daily and email you the drops, whichever one you pick.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

FeatureGoogle Nest Protect (Battery)X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice AlertsWinner
Warranty2 years5 yearsX-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
Battery Life2 years1 yearGoogle Nest Protect (Battery)
Connectivity2.4 GHz WiFi, Bluetooth, Other2.4 GHz WiFiGoogle Nest Protect (Battery)
IntegrationsGoogle Home, Home AssistantNoneGoogle Nest Protect (Battery)
ScreenNOYESX-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
SensorsSmoke, CO, Occupancy, Temperature, Humidity, Ambient Light, MotionCO, Temperature, HumidityGoogle Nest Protect (Battery)
AlertsFire Alerts, CO Alerts, Low Battery AlertsCO Alerts, Low Battery AlertsGoogle Nest Protect (Battery)
Built-in LightYESNOGoogle Nest Protect (Battery)
Tests ItselfYESNOGoogle Nest Protect (Battery)
PathlightYESNOGoogle Nest Protect (Battery)
Steam CheckYESNOGoogle Nest Protect (Battery)
Rating4.44.4Tie

Frequently Asked Questions

Which is better overall: Google Nest Protect (Battery) or X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts?

Google Nest Protect (Battery) has the stronger overall profile in this comparison, especially for battery life, connectivity, and integrations.

What is the biggest difference between Google Nest Protect (Battery) and X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts?

Warranty is one of the clearest differences: Google Nest Protect (Battery) lists 2 years, while X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts lists 5 years.

Who should buy Google Nest Protect (Battery)?

Choose Google Nest Protect (Battery) if your priority is battery life and connectivity and that matters more than warranty.

Who should buy X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts?

Choose X-Sense XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts if your priority is warranty and screen and that matters more than battery life.

Full comparison table

Compare all 21 Smoke & CO Detectors side by side

You are looking at two of them. The full table lines up all Smoke & CO Detectors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 21 Smoke & CO Detectors
  • 44 specs compared
  • 41 filters
Open the full comparison
More Smoke & CO Detectors

Top Smoke & CO Detectors to compare next

21 smart smoke and CO detectors from 8 brands compared: X-Sense, First Alert, Kidde, Google Nest and more. Sensor types, interlink and alerts.

All Smoke & CO Detectors
Google

More Google products

A sharper look at other Google products worth comparing.

Explore Google
X-Sense

More X-Sense products

A sharper look at other X-Sense products worth comparing.

Explore X-Sense