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$29.99
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Updated October 2026
Data from the official Heiman and X-Sense sites.
2026 verdict
For most buyers in 2026, X-Sense Wi-Fi Smoke Alarm is the safer pick over Heiman Smoke Alarm HM-636PHS because of rating, connectivity, and integrations.
Its biggest wins come from rating, connectivity, and integrations, and Built-in light adds more confidence to the verdict. Pick Heiman Smoke Alarm HM-636PHS only when warranty, tests itself, and steam check are the deciding factor for your setup. In practical terms, X-Sense Wi-Fi Smoke Alarm is the easier product to recommend.
vs
Winner
Works with
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Heiman Smoke Alarm HM-636PHS | X-Sense Wi-Fi Smoke Alarm | Winner |
|---|---|---|---|
| Rating | 4.2 | 4.3 | X-Sense Wi-Fi Smoke Alarm |
| Warranty | 10 years | 5 years | Heiman Smoke Alarm HM-636PHS |
| Connectivity | None | 2.4 GHz WiFi | X-Sense Wi-Fi Smoke Alarm |
| Integrations | None | Home Assistant | X-Sense Wi-Fi Smoke Alarm |
| Built-in Light | NO | YES | X-Sense Wi-Fi Smoke Alarm |
| Tests Itself | YES | NO | Heiman Smoke Alarm HM-636PHS |
| Steam Check | YES | NO | Heiman Smoke Alarm HM-636PHS |
| Battery Life | 10 years | 10 years | Tie |
| Screen | NO | NO | Tie |
| Sensors | Smoke | Smoke | Tie |
| Alerts | Fire Alerts, Low Battery Alerts | Fire Alerts, Low Battery Alerts | Tie |
| Built-in Siren | YES | YES | Tie |
17% OFF
Prime exclusive deal$24.99
$29.99
- + Warranty: 10 years
- + Tests Itself: YES
- + Steam Check: YES
- - Rating: 4.2 vs 4.3
- - Connectivity: None vs 2.4 GHz WiFi
Winner
- + Rating: 4.3
- + Connectivity: 2.4 GHz WiFi
- + Integrations: Home Assistant
- - Warranty: 5 years vs 10 years
- - Tests Itself: NO vs YES
Frequently Asked Questions
Which is better overall: Heiman Smoke Alarm HM-636PHS or X-Sense Wi-Fi Smoke Alarm?
X-Sense Wi-Fi Smoke Alarm has the stronger overall profile in this comparison, especially for rating, connectivity, and integrations.
What is the biggest difference between Heiman Smoke Alarm HM-636PHS and X-Sense Wi-Fi Smoke Alarm?
Rating is one of the clearest differences: Heiman Smoke Alarm HM-636PHS lists 4.2, while X-Sense Wi-Fi Smoke Alarm lists 4.3.
Who should buy Heiman Smoke Alarm HM-636PHS?
Choose Heiman Smoke Alarm HM-636PHS if your priority is warranty and tests itself 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 connectivity and that matters more than warranty.
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