Smoke & CO Detectors · Head to head

Heiman HS1SA Series Smoke Alarm vs X-Sense SD19-MN Interconnected Smart Smoke Alarm

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Heiman and X-Sense sites.
2026 verdict
Heiman HS1SA Series Smoke Alarm wins the 2026 matchup against X-Sense SD19-MN Interconnected Smart Smoke Alarm, mainly on price, integrations, and Built-in light.
Heiman HS1SA Series Smoke Alarm
Winner
Heiman HS1SA Series Smoke Alarm
£16.14£16.995% OFF
Buy on Amazon UKCheck price
The comparison tilts its way because of price, integrations, and Built-in light, with its broader overall balance keeping it in front. Choose X-Sense SD19-MN Interconnected Smart Smoke Alarm only if connectivity matters more to you than the broader advantage from Heiman HS1SA Series Smoke Alarm. For most setups, Heiman HS1SA Series Smoke Alarm is the smarter buy.
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FeatureHeiman HS1SA Series Smoke AlarmX-Sense SD19-MN Interconnected Smart Smoke AlarmWinner
Price£16.14$21.99Heiman HS1SA Series Smoke Alarm
ConnectivityZigbee2.4 GHz WiFi, OtherX-Sense SD19-MN Interconnected Smart Smoke Alarm
IntegrationsSamsung SmartThings, Home AssistantHome AssistantHeiman HS1SA Series Smoke Alarm
Built-in LightYESNOHeiman HS1SA Series Smoke Alarm
Battery Life10 years10 yearsTie
ScreenNONOTie
SensorsSmokeSmokeTie
AlertsFire Alerts, Low Battery AlertsFire Alerts, Low Battery AlertsTie
Built-in SirenYESYESTie
Tests ItselfNONOTie
PathlightNONOTie
Steam CheckNONOTie

Frequently Asked Questions

Which is better overall: Heiman HS1SA Series Smoke Alarm or X-Sense SD19-MN Interconnected Smart Smoke Alarm?

Heiman HS1SA Series Smoke Alarm has the stronger overall profile in this comparison, especially for price, integrations, and Built-in light.

What is the biggest difference between Heiman HS1SA Series Smoke Alarm and X-Sense SD19-MN Interconnected Smart Smoke Alarm?

Price is one of the clearest differences: Heiman HS1SA Series Smoke Alarm lists £16.14, while X-Sense SD19-MN Interconnected Smart Smoke Alarm lists $21.99.

Which one looks better on price?

Heiman HS1SA Series Smoke Alarm is listed at £16.14, while X-Sense SD19-MN Interconnected Smart Smoke Alarm is listed at $21.99. 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 connectivity.

Who should buy X-Sense SD19-MN Interconnected Smart Smoke Alarm?

Choose X-Sense SD19-MN Interconnected Smart Smoke Alarm if your priority is connectivity and that matters more than price.

Full comparison table

Compare all 21 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.

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