Winner
Updated November 2026
Data from the official Heiman and X-Sense sites.
2026 verdict
Between Heiman Interconnected CO Alarm C1-R and X-Sense Wi-Fi Smoke Alarm, Heiman Interconnected CO Alarm C1-R is the better overall pick in 2026, leading on connectivity, integrations, and tests itself.
Its biggest wins come from connectivity, integrations, and tests itself, and its broader overall balance adds more confidence to the verdict. The only strong reason to choose X-Sense Wi-Fi Smoke Alarm is if rating and Built-in light are more important to you than the overall verdict. That is enough to make Heiman Interconnected CO Alarm C1-R the better pick for most buyers.
Works with
Connectivity
- Wi-Fi 2.4 GHz
vs
Price unavailable right now
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Heiman Interconnected CO Alarm C1-R | X-Sense Wi-Fi Smoke Alarm | Winner |
|---|---|---|---|
| Rating | 4.2 | 4.3 | X-Sense Wi-Fi Smoke Alarm |
| Connectivity | 2.4 GHz WiFi, Other | 2.4 GHz WiFi | Heiman Interconnected CO Alarm C1-R |
| Integrations | Google Home, Samsung SmartThings, Home Assistant | Home Assistant | Heiman Interconnected CO Alarm C1-R |
| Built-in Light | NO | YES | X-Sense Wi-Fi Smoke Alarm |
| Tests Itself | YES | NO | Heiman Interconnected CO Alarm C1-R |
| Battery Life | 10 years | 10 years | Tie |
| Screen | NO | NO | Tie |
| Sensors | CO | Smoke | Tie |
| Alerts | CO Alerts, Low Battery Alerts | Fire Alerts, Low Battery Alerts | Tie |
| Built-in Siren | YES | YES | Tie |
| Pathlight | NO | NO | Tie |
| Steam Check | NO | NO | Tie |
Winner
$31.97
- + Connectivity: 2.4 GHz WiFi, Other
- + Integrations: Google Home, Samsung SmartThings, Home Assistant
- + Tests Itself: YES
- - Rating: 4.2 vs 4.3
- - Built-in Light: NO vs YES
Price unavailable right now
- + Rating: 4.3
- + Built-in Light: YES
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Other
- - Integrations: Home Assistant vs Google Home, Samsung SmartThings, Home Assistant
Frequently Asked Questions
Which is better overall: Heiman Interconnected CO Alarm C1-R or X-Sense Wi-Fi Smoke Alarm?
Heiman Interconnected CO Alarm C1-R has the stronger overall profile in this comparison, especially for connectivity, integrations, and tests itself.
What is the biggest difference between Heiman Interconnected CO Alarm C1-R and X-Sense Wi-Fi Smoke Alarm?
Rating is one of the clearest differences: Heiman Interconnected CO Alarm C1-R lists 4.2, while X-Sense Wi-Fi Smoke Alarm lists 4.3.
Who should buy Heiman Interconnected CO Alarm C1-R?
Choose Heiman Interconnected CO Alarm C1-R if your priority is connectivity and integrations and that matters more than rating.
Who should buy X-Sense Wi-Fi Smoke Alarm?
Choose X-Sense Wi-Fi Smoke Alarm if your priority is rating and Built-in light and that matters more than connectivity.
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Compare all 28 Smoke & CO Detectors side by side
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- 28 Smoke & CO Detectors
- 45 specs compared
- 42 filters
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Matter Smoke Detector S1-TM
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Smoke Alarm HM-636PHS
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STH0B Smart Thermometer Hygrometer
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2-in-1 Wi-Fi Water Leak & Freeze Detector
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Wi-Fi Water Leak Detector