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Smoke & CO Detectors · Head to head

Heiman Matter Smoke Detector S1-M vs X-Sense WiFi Smoke & CO Detector

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Heiman and X-Sense sites.
2026 verdict
For most buyers in 2026, Heiman Matter Smoke Detector S1-M is the safer pick over X-Sense WiFi Smoke & CO Detector because of price, battery life, and integrations.
Heiman Matter Smoke Detector S1-M
Winner
Heiman Matter Smoke Detector S1-M
$39.99
Buy on Amazon USA
Its biggest wins come from price, battery life, and integrations, and tests itself and steam check add more confidence to the verdict. The only strong reason to choose X-Sense WiFi Smoke & CO Detector is if rating, screen, and sensors are more important to you than the overall verdict. In practical terms, Heiman Matter Smoke Detector S1-M is the easier product to recommend.
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FeatureHeiman Matter Smoke Detector S1-MX-Sense WiFi Smoke & CO DetectorWinner
Price$39.99€59.18Heiman Matter Smoke Detector S1-M
Rating3.64.5X-Sense WiFi Smoke & CO Detector
Battery Life5 years1 yearHeiman Matter Smoke Detector S1-M
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterHome AssistantHeiman Matter Smoke Detector S1-M
ScreenNOYESX-Sense WiFi Smoke & CO Detector
SensorsSmokeSmoke, COX-Sense WiFi Smoke & CO Detector
AlertsFire Alerts, Low Battery AlertsFire Alerts, CO Alerts, Low Battery AlertsX-Sense WiFi Smoke & CO Detector
Built-in LightNOYESX-Sense WiFi Smoke & CO Detector
Tests ItselfYESNOHeiman Matter Smoke Detector S1-M
Steam CheckYESNOHeiman Matter Smoke Detector S1-M
ConnectivityThread Protocol2.4 GHz WiFiTie
Built-in SirenYESYESTie

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Heiman Matter Smoke Detector S1-M
  • X-Sense WiFi Smoke & CO Detector

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Frequently Asked Questions

Which is better overall: Heiman Matter Smoke Detector S1-M or X-Sense WiFi Smoke & CO Detector?

Heiman Matter Smoke Detector S1-M has the stronger overall profile in this comparison, especially for price, battery life, and integrations.

What is the biggest difference between Heiman Matter Smoke Detector S1-M and X-Sense WiFi Smoke & CO Detector?

Price is one of the clearest differences: Heiman Matter Smoke Detector S1-M lists $39.99, while X-Sense WiFi Smoke & CO Detector lists €59.18.

Which one looks better on price?

Heiman Matter Smoke Detector S1-M is listed at $39.99, while X-Sense WiFi Smoke & CO Detector is listed at €59.18. Heiman Matter Smoke Detector S1-M (better spec).

Who should buy Heiman Matter Smoke Detector S1-M?

Choose Heiman Matter Smoke Detector S1-M if your priority is price and battery life and that matters more than rating.

Who should buy X-Sense WiFi Smoke & CO Detector?

Choose X-Sense WiFi Smoke & CO Detector if your priority is rating and screen and that matters more than price.

Full comparison table

Compare all 25 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.

  • 25 Smoke & CO Detectors
  • 44 specs compared
  • 41 filters
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