A smoke alarm is one of those devices you hope never has to prove how good it is. Smart technology can make it more useful, though, especially when an alarm can reach you when you’re away from home, tell you what triggered it, or alert every connected alarm in the house at once.
The challenge is figuring out which features actually matter. A smart smoke detector needs to do more than send notifications to your phone. Detection technology, carbon monoxide protection, wireless interconnection, battery life, installation, false-alarm management, and compatibility with your smart-home setup can all make a meaningful difference. Some models also add voice alerts, remote testing, visual status displays, and professional monitoring.
We looked at the smart smoke detectors available in 2026 and selected models that stand out for different types of homes and needs. The picks below consider the features, installation requirements, smart-home compatibility, and value each model brings to the table.
The X-Sense SC07-MR51 takes a whole-home approach to smoke and carbon monoxide protection, bundling five battery-powered alarms with an SBS50 base station. The built-in RF module allows the alarms to communicate wirelessly with one another, so an alarm triggered in one room can alert the other connected alarms across different rooms and floors without requiring hardwired interconnection.
The system goes beyond simply sending alerts to your phone. Through the X-Sense app, you can receive real-time alerts while you’re away from home, check device status, test your alarms, and silence nuisance alarms without climbing a ladder. You can also share access to alerts and device controls with up to 12 family members or friends, so more than one person can keep tabs on the home in an emergency. Better yet, none of these features requires a subscription fee.
The five-alarm kit costs $179.99, which works out to about $36 per alarm with the base station included. For homeowners looking for a battery-powered, interconnected alternative to Google Nest Protect, which is no longer sold directly by Google, the SC07-MR51 offers a particularly compelling way to cover multiple rooms without the cost and complexity of a hardwired system.
If your home already runs on Ring, the Kidde Battery Smart Smoke & CO Alarm is an easy way to bring smoke and carbon monoxide protection into the same connected ecosystem. The battery-powered alarm sends real-time notifications through the Ring app when it detects smoke or carbon monoxide, while its voice alerts and 85-decibel alarm provide an audible warning inside the home. Compatible alarms can also be wirelessly interconnected, so an alarm triggered in one part of the house can alert others.
The alarm is also designed for people who want smart features without having to pay for a subscription just to receive notifications. Ring alerts are included, while optional 24/7 professional monitoring is available for $5 per month or $50 per year. Alexa compatibility adds another layer of smart-home integration, making this a particularly good fit for households already using Ring and Alexa devices.
At $69.98, the battery-powered model is considerably easier to add room by room than a full hardwired system. It also uses replaceable batteries, making it a practical choice for homes where installing new wiring isn’t an option. For Ring users who want a current, connected smoke and CO alarm without moving to another smart-home ecosystem, this is one of the most straightforward options to consider.
When a smoke alarm goes off, knowing where the danger is can be just as important as knowing something is wrong. The First Alert SC5 uses voice alerts to identify the type of emergency and its location, helping occupants understand whether the alarm has detected smoke or carbon monoxide and where the threat may be. It combines photoelectric smoke sensing with an electrochemical CO sensor, providing protection against both hazards in a single device.
The SC5 also sends mobile alerts through the First Alert app, so you can stay informed when you’re away from home. Its wireless interconnectivity means compatible alarms can sound together when one detects a threat, while Precision Detection technology is designed to provide early warnings and help reduce nuisance alarms. You can also test or silence the alarm using its button, and the app provides notifications when the batteries are running low or the unit needs replacing.
The battery-powered model is listed at $129.99 on First Alert’s website, although it is currently marked unavailable there. The SC5 is also available in a hardwired version, giving homeowners an alternative when replacing an existing wired alarm. Its combination of voice alerts, connected notifications, and wireless interconnection makes it worth considering for anyone who wants more specific information during an emergency.
Not every smart smoke alarm needs to be a combination smoke and carbon monoxide detector. The eufy Smoke Alarm E10 focuses on smoke detection, with a compact design measuring just 2.75 inches in diameter. It uses a photoelectric sensor and meets UL 217 requirements, while its design is intended to reduce nuisance alerts. The alarm produces a sound of at least 85 decibels at 10 feet, providing an audible warning when smoke is detected.
The E10 connects to a compatible eufy HomeBase, allowing it to communicate with the eufy security system and deliver connected alerts. Its wireless range extends up to 656 feet in open areas, according to eufy, and the alarm has a replaceable CR123A battery rated for up to five years under normal conditions. You can also test the alarm using its built-in test function and silence it through the app.
At $59.99, the E10 is worth considering if you already use a compatible eufy HomeBase and want to add smoke detection to your existing setup. The main limitation is that it detects smoke only, so you’ll need a separate carbon monoxide alarm if you also require CO protection. A compatible HomeBase is essential for operation, and buyers should check their hub model and firmware version before purchasing.
Smart-home owners often have to choose devices based on which ecosystem they support. The Heiman S1-M takes a different approach with Matter over Thread connectivity, allowing it to work with compatible setups using Apple Home, Google Home, Amazon Alexa, and Home Assistant. Its photoelectric smoke sensor detects smoke, while a built-in alarm rated at 85 decibels or more at 10 feet provides an audible warning even when your smart-home system is unavailable.
The compact alarm measures approximately 2.76 inches across and uses a replaceable CR123A lithium battery rated for up to five years. Its wireless connection supports local smart-home integration through compatible Matter platforms, although you’ll need a compatible Thread border router to use its connected features. The alarm can also be mounted on a wall or ceiling, giving homeowners some flexibility when installing it.
At around $39.99, the S1-M is worth considering if cross-platform compatibility is a priority. It is a smoke-only alarm, however, so you’ll need a separate carbon monoxide detector for CO protection. Buyers should also confirm that they’re purchasing the North American S1-M model, which the manufacturer lists with ETL certification to UL 217, rather than a similarly named model intended for another market.
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