Winner
Updated November 2026
Data from the official Heiman and X-Sense sites.
2026 verdict
Heiman Interconnected CO Alarm C1-R beats X-Sense Wi-Fi Carbon Monoxide Alarm in 2026, with its clearest edge on price, battery life, and connectivity.
It has the clearer edge on price, battery life, and connectivity, and it stays ahead on integrations and tests itself. Choose X-Sense Wi-Fi Carbon Monoxide Alarm only if rating, screen, and Built-in light matter more to you than the broader advantage from Heiman Interconnected CO Alarm C1-R. For most setups, Heiman Interconnected CO Alarm C1-R is the smarter buy.
Works with
Connectivity
- Wi-Fi 2.4 GHz
vs
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Heiman Interconnected CO Alarm C1-R | X-Sense Wi-Fi Carbon Monoxide Alarm | Winner |
|---|---|---|---|
| Price | $31.97 | £35.99 | Heiman Interconnected CO Alarm C1-R |
| Rating | 4.2 | 4.6 | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Battery Life | 10 years | 1 year | Heiman Interconnected CO Alarm C1-R |
| 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 |
| Screen | NO | YES | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Built-in Light | NO | YES | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Tests Itself | YES | NO | Heiman Interconnected CO Alarm C1-R |
| Sensors | CO | CO | Tie |
| Alerts | CO Alerts, Low Battery Alerts | CO Alerts, Low Battery Alerts | Tie |
| Built-in Siren | YES | YES | Tie |
| Pathlight | NO | NO | Tie |
Winner
$31.97
- + Price: $31.97
- + Battery Life: 10 years
- + Connectivity: 2.4 GHz WiFi, Other
- - Rating: 4.2 vs 4.6
- - Screen: NO vs YES
£35.99
- + Rating: 4.6
- + Screen: YES
- + Built-in Light: YES
- - Price: £35.99 vs $31.97
- - Battery Life: 1 year vs 10 years
Frequently Asked Questions
Which is better overall: Heiman Interconnected CO Alarm C1-R or X-Sense Wi-Fi Carbon Monoxide Alarm?
Heiman Interconnected CO Alarm C1-R has the stronger overall profile in this comparison, especially for price, battery life, and connectivity.
What is the biggest difference between Heiman Interconnected CO Alarm C1-R and X-Sense Wi-Fi Carbon Monoxide Alarm?
Price is one of the clearest differences: Heiman Interconnected CO Alarm C1-R lists $31.97, while X-Sense Wi-Fi Carbon Monoxide Alarm lists £35.99.
Which one looks better on price?
Heiman Interconnected CO Alarm C1-R is listed at $31.97, while X-Sense Wi-Fi Carbon Monoxide Alarm is listed at £35.99. Heiman Interconnected CO Alarm C1-R (better spec).
Who should buy Heiman Interconnected CO Alarm C1-R?
Choose Heiman Interconnected CO Alarm C1-R if your priority is price and battery life and that matters more than rating.
Who should buy X-Sense Wi-Fi Carbon Monoxide Alarm?
Choose X-Sense Wi-Fi Carbon Monoxide Alarm if your priority is rating and screen and that matters more than price.
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