Winner
Data from Amazon and official Heiman and X-Sense sites.
2026 verdict
Taken as a whole in 2026, Heiman HS1SA Series Smoke Alarm wins this matchup. It builds its lead on price and integrations, then backs it up with a stronger showing on its broader overall balance. The only strong reason to choose X-Sense Wi-Fi Carbon Monoxide Alarm is if rating and screen is more important to you than the overall verdict. That is enough to make Heiman HS1SA Series Smoke Alarm the better pick for most buyers.
| Feature | Heiman HS1SA Series Smoke Alarm | X-Sense Wi-Fi Carbon Monoxide Alarm | Winner |
|---|---|---|---|
| Price | £16.14 | €28.73 | Heiman HS1SA Series Smoke Alarm |
| Rating | 4.4 | 4.6 | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Integrations | Home Assistant | None | Heiman HS1SA Series Smoke Alarm |
| Screen | NO | YES | X-Sense Wi-Fi Carbon Monoxide Alarm |
| Connectivity | Zigbee | 2.4 GHz Wifi | Tie |
| Sensors | Smoke | CO | Tie |
| Alerts | Fire Alerts, Low Battery Alerts | CO Alerts, Low Battery Alerts | Tie |
| Built-in Siren | YES | YES | Tie |
| Built-in Light | YES | YES | Tie |
| Tests Itself | NO | NO | Tie |
| Pathlight | NO | NO | Tie |
| Steam Check | NO | NO | Tie |
Winner
5% OFF
£16.99
£16.14
- + Price: £16.14
- + Integrations: Home Assistant
- - Rating: 4.4 vs 4.6
- - Screen: NO vs YES
28% OFF
€39.99
€28.73
- + Rating: 4.6
- + Screen: YES
- - Price: €28.73 vs £16.14
- - Integrations: None vs Home Assistant
Frequently Asked Questions (FAQ)
- Which is better overall: Heiman HS1SA Series Smoke Alarm or X-Sense Wi-Fi Carbon Monoxide Alarm?
- Heiman HS1SA Series Smoke Alarm has the stronger overall profile in this comparison, especially for price and integrations.
- What is the biggest difference between Heiman HS1SA Series Smoke Alarm and X-Sense Wi-Fi Carbon Monoxide Alarm?
- Price is one of the clearest differences: Heiman HS1SA Series Smoke Alarm lists £16.14, while X-Sense Wi-Fi Carbon Monoxide Alarm lists €28.73.
- Which one looks better on price?
- Heiman HS1SA Series Smoke Alarm is listed at £16.14, while X-Sense Wi-Fi Carbon Monoxide Alarm is listed at €28.73. Heiman HS1SA Series Smoke Alarm (better spec).
- Who should buy Heiman HS1SA Series Smoke Alarm?
- Choose Heiman HS1SA Series Smoke Alarm if your priority is price and integrations 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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