Top 5 Smart Smoke Detectors in Canada, 2026
A smart smoke detector sends an alert to your phone when you are away, which a standard alarm cannot do. Two things changed the Canadian market recently: Google has stopped producing the Nest Protect, and First Alert's SC5 is the alarm Google names as its successor. Check any alarm for a CAN/ULC-S531 listing before you buy, since a UL 217 mark alone is the US listing.
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Top Picks Summary
Google Nest Protect
The Google Nest Protect is a smart smoke and carbon monoxide detector that offers advanced features, including voice alerts and smartphone notifications. Its self-test functionality ensures reliable performance, alerting users about potential issues. The sleek design blends seamlessly into any home decor, making it not just a safety device but also a stylish addition. With its easy installation and intuitive app integration, it stands out as a top choice for modern homes.
Estimated$120 – $150
First Alert Onelink Smart Smoke + Carbon Monoxide Alarm
The First Alert Onelink Smart Smoke and Carbon Monoxide Alarm combines cutting-edge technology with user-friendly features, including real-time alerts sent directly to your smartphone. With its sleek design and voice notifications, it provides peace of mind without compromising on style. The device also integrates with smart home systems for added convenience. Its dual-sensor technology ensures comprehensive protection against both smoke and CO threats.
Kidde Wireless Interconnect Smoke Alarm
The Kidde Wireless Interconnect Smoke Alarm is designed for easy installation and enhanced safety. Its wireless interconnectivity allows multiple alarms to sound simultaneously, providing an unparalleled level of security throughout your home. With a reliable battery backup, this product ensures functionality even during power outages. Its compact design and hassle-free maintenance features set it apart in the competitive smoke alarm market.
Estimated$100 – $120
X-Sense Smart Smoke Detector
The X-Sense Smart Smoke Detector boasts advanced smoke detection capabilities and smart features such as real-time alerts via a dedicated app. Its long-lasting battery ensures uninterrupted monitoring, making it a dependable choice for safeguarding your home. With a user-friendly installation process and sleek appearance, it fits effortlessly into any space. This product stands out with its dual-sensor technology for enhanced fire safety.
Estimated$40 – $80
First Alert SC5 Hardwire Smart Smoke & Carbon Monoxide Alarm
The First Alert SC5 is a smart smoke and carbon monoxide alarm that Google and First Alert name as the replacement for the discontinued Nest Protect. First Alert lists hardwired and battery-operated versions for Canada. This listing is the hardwired version, so it suits a home where a smoke alarm already sits on a ceiling circuit.
The best smart smoke detectors offer smartphone notifications, self-check features, and integration with other smart systems for comprehensive safety.
Understanding Smart Smoke Detectors
Smart smoke detectors utilize cutting-edge technology to enhance safety and provide peace of mind for homeowners. Here’s why these devices are essential:
Real-Time Alerts: Smart smoke detectors send notifications to your smartphone when smoke is detected, allowing immediate action even when you are away from home.
Integration with Smart Home Systems: Many smart smoke detectors can be integrated with other smart home devices, providing a cohesive safety network.
Self-Testing Features: These detectors often have self-diagnostic capabilities, ensuring they remain functional and are tested regularly without manual intervention.
Remote Monitoring: Consumers can monitor their smoke detectors from anywhere, keeping an eye on the safety of their home at all times.
Voice Alerts: Many models provide voice alerts that describe the type of danger (smoke or carbon monoxide), reducing confusion during emergencies.
Data Analytics: Some smart smoke detectors offer data logging features, tracking and analyzing smoke detector activity, helping homeowners stay informed about their safety.
Canadian Certification: The standard that applies in Canada is CAN/ULC-S531, referenced by the National Building Code and National Fire Code. A US-only UL 217 mark is not the same listing, so check the label or spec sheet before you buy.
Frequently Asked Questions
Which smart smoke detector should I buy for Canada?
For most Canadians who want phone alerts, the First Alert SC5 is the current choice: Google names it as the replacement for the Nest Protect, and it detects both smoke and carbon monoxide. The Google Nest Protect is still listed here, but Google stopped producing it in 2025. Existing units keep working. The First Alert Onelink is also listed; First Alert's US store marks its Generation 3 hardwired model as discontinued, so confirm Canadian stock before you choose it.
Do smart smoke detectors need to be ULC certified in Canada?
Yes. The standard that applies in Canada is CAN/ULC-S531, which is referenced by the National Building Code of Canada and the National Fire Code; its current third edition adds test requirements for multi-criteria alarms that also detect CO, for the reliability of wireless interconnected alarms, and for end-of-life signalling. A UL 217 mark on its own is the US listing, so check the alarm's label or spec sheet for a CAN/ULC-S531 listing before you buy. Fire-safety products sold in Canada must also carry bilingual English and French warnings and instructions, which is a quick way to spot a unit that was only ever listed for the US market.
Are these smart smoke detectors photoelectric or ionization?
Photoelectric sensing responds faster to slow, smouldering fires and causes fewer cooking nuisance alarms than ionization. The First Alert Onelink and the First Alert SC5 are smoke and carbon monoxide combos, so they add a CO sensor. The Kidde Wireless Interconnect is a smoke-only alarm with a sealed 10-year battery.
What is the status of the Google Nest Protect?
Google stopped producing the Nest Protect in 2025 and is selling through remaining stock. Units already installed keep working. For a new install, the First Alert SC5 is the alarm Google names as its successor.
Conclusion
Start with the SC5 if you want a current smoke and CO alarm with phone alerts, and look at the Kidde if you only need smoke detection across several rooms. Prices and stock change, so confirm both on the retailer page. Use the search bar if you need a specific feature.