Smoke & CO Detectors · Head to head

Heiman HS1SA Series Smoke Alarm vs X-Sense WiFi Smoke & CO Detector

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Heiman and X-Sense sites.
2026 verdict
The X-Sense WiFi Smoke & CO Detector is the more complete alarm in this pairing, adding carbon monoxide sensing and CO alerts that the smoke-only Heiman cannot match, plus an LCD screen for at-a-glance status. That dual-hazard coverage means one X-Sense unit can stand in for both a smoke and a CO detector, and it sends both fire and CO alerts over WiFi. The Heiman HS1SA Series Smoke Alarm still has its strengths: it is the more affordable option and it integrates with SmartThings and Home Assistant over Zigbee, where the X-Sense sticks to its own app with no platform links. Pick the X-Sense WiFi Smoke & CO Detector if you want combined smoke-and-CO protection with a display; pick the Heiman HS1SA Series Smoke Alarm if you only need smoke detection at the lowest price and want Zigbee automations through a hub.
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FeatureHeiman HS1SA Series Smoke AlarmX-Sense WiFi Smoke & CO DetectorWinner
IntegrationsSamsung SmartThings, Home AssistantHome AssistantHeiman HS1SA Series Smoke Alarm
ScreenNOYESX-Sense WiFi Smoke & CO Detector
SensorsSmokeSmoke, COX-Sense WiFi Smoke & CO Detector
AlertsFire Alerts, Low Battery AlertsFire Alerts, CO Alerts, Low Battery AlertsX-Sense WiFi Smoke & CO Detector
Rating4.54.5Tie
ConnectivityZigbee2.4 GHz WiFiTie
Built-in SirenYESYESTie
Built-in LightYESYESTie
Tests ItselfNONOTie
PathlightNONOTie
Steam CheckNONOTie

Frequently Asked Questions

Which is better, the Heiman HS1SA Series Smoke Alarm or the X-Sense WiFi Smoke & CO Detector?

The X-Sense WiFi Smoke & CO Detector is the more complete alarm because it senses both smoke and carbon monoxide and adds an LCD screen, while the Heiman HS1SA Series Smoke Alarm detects smoke only. The Heiman wins on price and Zigbee smart home integration.

What is the biggest difference between them?

Carbon monoxide coverage. The X-Sense WiFi Smoke & CO Detector combines smoke and CO sensing in one unit with CO alerts, while the Heiman HS1SA Series Smoke Alarm has no CO sensor and would need a separate detector for carbon monoxide.

Which one has a screen and smart home support?

The X-Sense WiFi Smoke & CO Detector has an LCD screen for status but no platform integrations, connecting only to its own app. The Heiman HS1SA Series Smoke Alarm has no screen, yet it links to SmartThings and Home Assistant over Zigbee through a hub.

Which is more affordable?

The Heiman HS1SA Series Smoke Alarm is the cheaper unit, which suits a budget smoke-only install. The X-Sense WiFi Smoke & CO Detector costs more but bundles carbon monoxide sensing and a display into that price.

Who should buy the X-Sense WiFi Smoke & CO Detector?

Buy the X-Sense WiFi Smoke & CO Detector if you want one alarm that covers both smoke and carbon monoxide, with a clear LCD readout and WiFi phone alerts, rather than mounting two separate devices.

Who should buy the Heiman HS1SA Series Smoke Alarm?

Buy the Heiman HS1SA Series Smoke Alarm if you only need smoke detection at the lowest price, want a compact, discreet unit, and value optional Zigbee automations through a SmartThings or Home Assistant hub.

Full comparison table

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