Smoke & CO Detectors · Head to head

Google Nest Protect (Battery) vs Heiman HS1SA Series Smoke Alarm

Full Smart Smoke & CO Detectors comparison in 2026

Data from Amazon and official Google and Heiman sites.
2026 verdict
For most buyers in 2026, Google Nest Protect (Battery) is the safer pick over Heiman HS1SA Series Smoke Alarm because of rating, connectivity, and sensors. It wins the broader comparison through rating, connectivity, and sensors, while alerts and tests itself helps confirm the result. Pick Heiman HS1SA Series Smoke Alarm only when price and battery life is the deciding factor for your setup. In practical terms, Google Nest Protect (Battery) is the easier product to recommend.
vs
FeatureGoogle Nest Protect (Battery)Heiman HS1SA Series Smoke AlarmWinner
Price$158.29£16.14Heiman HS1SA Series Smoke Alarm
Rating4.64.5Google Nest Protect (Battery)
Battery Life2 years10 yearsHeiman HS1SA Series Smoke Alarm
Connectivity2.4 GHz WiFi, BluetoothZigbeeGoogle Nest Protect (Battery)
SensorsSmoke, CO, Occupancy, Temperature, Humidity, Ambient Light, MotionSmokeGoogle Nest Protect (Battery)
AlertsFire Alerts, CO Alerts, Low Battery AlertsFire Alerts, Low Battery AlertsGoogle Nest Protect (Battery)
Tests ItselfYESNOGoogle Nest Protect (Battery)
PathlightYESNOGoogle Nest Protect (Battery)
Steam CheckYESNOGoogle Nest Protect (Battery)
IntegrationsGoogle Home, Home AssistantSamsung SmartThings, Home AssistantTie
ScreenNONOTie
Built-in SirenYESYESTie

Frequently Asked Questions

Which is better overall: Google Nest Protect (Battery) or Heiman HS1SA Series Smoke Alarm?

Google Nest Protect (Battery) has the stronger overall profile in this comparison, especially for rating, connectivity, and sensors.

What is the biggest difference between Google Nest Protect (Battery) and Heiman HS1SA Series Smoke Alarm?

Price is one of the clearest differences: Google Nest Protect (Battery) lists $158.29, while Heiman HS1SA Series Smoke Alarm lists £16.14.

Which one looks better on price?

Google Nest Protect (Battery) is listed at $158.29, while Heiman HS1SA Series Smoke Alarm is listed at £16.14. Heiman HS1SA Series Smoke Alarm (better spec).

Who should buy Google Nest Protect (Battery)?

Choose Google Nest Protect (Battery) if your priority is rating and connectivity and that matters more than price.

Who should buy Heiman HS1SA Series Smoke Alarm?

Choose Heiman HS1SA Series Smoke Alarm if your priority is price and battery life and that matters more than rating.

More Smoke & CO Detectors

Top Smoke & CO Detectors to compare next

Compare Smart Smoke & CO alarms by power source, connectivity, sensors, alerts, display, integrations, automations, and safety features.

Compare Smoke & CO Detectors
Google

More Google products

A sharper look at other Google products worth comparing.

Explore Google
Heiman

More Heiman products

A sharper look at other Heiman products worth comparing.

Explore Heiman
Stay in the loop

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart Home Deals & News straight to your inbox

Join the newsletter and get the best smart home deals and new releases in your inbox.

DealsNew ReleasesTop RatedBrandsBlogEcosystemsProtocolsUse CasesAboutPodcastTerms of UsePrivacy Policy
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search