The 7 Best Smart Smoke Detectors of 2019

They're the surefire way to stay safe in your home

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

Our Top Picks

Best Overall: Nest Protect at Amazon

"If you want a smart smoke detector, Nest is at the top of the game."

Best Budget: Kidde Wireless Battery-Operated Smoke Alarm at Amazon

"For the budget-friendly price, this device will still give you wire-free interconnectivity quickly and easily."

Best for Alexa Users: First Alert Onelink Safe & Sound at Amazon

"It can also play music, news, or audiobooks through its included high-end speakers."

Best Value: First Alert 2-in-1 Z Wave Smoke Detector at Amazon

"An affordable option if you need multiple alarms throughout your home."

Best for Weather Alerts: : Halo+ Smart Smoke & CO alarm at Home Depot

"Adds another layer of protection to your home by also delivering weather and disaster alerts directly to you."

Best for ADT Security Users: Samsung SmartThings Smoke Alarm at Amazon

"It can even send you reminders about...other connected devices to help ensure your home’s safety."

Best Design: Leeo Smart Smoke Detector at Amazon

"Its pleasant, app-controlled night light system...lets you adjust the color and hue of the light."

Our Top Picks

Best Overall: Nest Protect

Nest S3000BWES
Courtesy of Amazon
5

There’s no question about it – if you want a smart smoke detector, Nest is at the top of the game. The Nest Protect has an industrial-grade photoelectric smoke sensor that can distinguish between different types of fires and works with other smart devices in your home such as thermostats or light bulbs according to your preferences. The Nest Protect can be hushed from your phone – no more annoying false alarms! – and alerts your phone to tell you what it thinks is wrong, so you can keep an eye on your home even when you’re far away.

Some of its other features include an occupancy sensor, ambient light sensor and even a humidity sensor to build a complete picture of what is going on in your home. It comes in a wired or battery version and connects to Wi-Fi after a simple set-up process. As a bonus, you can choose from multiple different metallic finishes to complement your home’s décor.

Best Budget: Kidde RF-SM-DC Wireless Interconnect Battery-Operated Smoke Alarm

The Kidde RF-SM-DC may not have all the extra features that some of the other alarms on our list do, but for the budget-friendly price, this device will still give you wire-free interconnectivity quickly and easily. It uses radio frequency to send and receive messages between your smart home system and/or the other alarms in your home. This allows you to update your system in minutes ​so that when one alarm goes off, all the alarms go off. Experts agree that an interconnected alarm system is a superior choice to keep you and your loved ones safe.

Thanks to this Kidde alarm, you can create this interconnected smoke alarm system without spending a ton of money and time to rewire your home. Plus, if you have a smart home hub already like Wink or SmartThings, you can connect your Kidde alarm to it and control it through your hub. A smart touch button quickly hushes the system to silence nuisance alarms.​​​​

Best for Alexa Users: First Alert Onelink Safe & Sound

Have you become best friends with Amazon’s Alexa? If so, this special version of the First Alert Onelink called the Safe & Sound with Amazon Alexa may be the best choice for you. This smart alarm detects fire and carbon monoxide threats in your home, tells you the type and location of the threat and even sends alerts to your phone. However, with its built-in Alexa services, it can also play music, news, or audiobooks through its included high-end speakers. If you have other smart devices in your home, use hands-free voice commands to control lights, locks, thermostats or any other smart devices you may have. The companion app allows you to easily test or silence your alarm, control entertainment devices or adjust the included nightlight using your smartphone or tablet. 

Best Value: First Alert 2-in-1 Z Wave Smoke Detector

The First Alert 2-in-1 Z Wave Smoke Detector is an affordable option if you need multiple alarms throughout your home. This budget-friendly smoke detector and carbon monoxide detector features both electrochemical and photoelectric smoke sensors in order to minimize the risk of false alarms from things such as shower steam. This device can wirelessly link to a z-wave hub such as the Nexia Home Intelligence Hub that helps you control the smart devices in your home and sends alerts to your device if you are away from home. If you do get a false alarm, you can silence the alarm with a touch of a single button.

Best for Weather Alerts: Halo+ Smart Smoke & Carbon Monoxide CO Alarm

Halo+ Smart Smoke and CO Alarm

 Courtesy of Home Depot

The Halo + Smart Smoke & Carbon Monoxide alarm uses six different sensors to quickly detect different types of fires, as well as carbon monoxide while reducing false alarms. In addition to these alerts the Halo + Smart Smoke and Carbon Monoxide alarm adds another layer of protection to your home by also delivering weather and disaster alerts directly to you or your device using a customizable NOAA weather radio. Quickly find out about tornadoes, flooding, hurricanes, earthquakes and more with the Halo. You can connect it to any number of third-party smart hubs such as Lowe’s Iris, Samsung’s SmartThings or even Amazon Alexa. It can also be set up to communicate to your mobile device, so you can get alerts even if you are on vacation. The Halo+ even has an app- or voice-controlled accent light to help you set the mood in a room or use as a convenient night light.

Best for ADT Security Users: Samsung SmartThings ADT Smoke Alarm

If you use the ADT Security Hub, the Samsung SmartThings ADT Smoke Alarm can connect directly to it. Add other SmartThings devices, including lights, cameras, doorbells, door locks, thermostats and sensors to transform your home into a smart home. This smoke alarm will let you know whenever extreme temperatures or smoke is detected in your home. It can even send you reminders about setting lights, door locks or other connected devices to help ensure your home’s safety. ADT Security monitoring is optional, but not required, for this product, but do note that it doesn’t work with the SmartThings hub.

Best Design: Leeo Smart Smoke Detector

This is one of the Leeo brand's only products, and it's clear they’re aiming to do something different. Most smoke alarms operate on a battery — Leeo plugs into a wall. As such, it makes the most sense as a supplemental system, because it won’t work if the power goes out. But then again, if you lose power, you lose all the smart functionality of the Wi-Fi-dependent units anyway. Where Leeo really shines (pun intended) is with its pleasant, app-controlled night light system that lets you adjust the color and hue of the light. In buying this system, you get a nice smart light in addition to a smoke detector. We recommend putting this somewhere like a kitchen or a children’s bedroom in addition to your standard smoke detectors, because it’ll listen for the smoke alarms from above and give you smart alerts when it is receiving power. It'll even blend in nicely with your home decor ​and add a touch of mood lighting, all in one. An extra bonus is it’ll read other household info like humidity, too.

Tested by

How We Tested

We bought a top-rated smart smoke detector that our reviewer tested for weeks on end. We asked our tester to consider the most important features when using this smoke detector, from its detection capabilities to its interconnectivity. We’ve outlined the key takeaways here so that you, too, know what to look for when shopping.

What to Look for in a Smoke Detector

Voice control - When a kitchen mishap causes a false alarm, there’s no need to drag out a stepladder or poke at your smoke detector with a broom to shut it off. Look for a smart smoke detector that includes a voice hush feature, which lets you quickly shut things down in case of a false alarm. Some smart smoke detectors even work with Alexa.

Interconnectivity - This feature allows one smoke detector to instruct the rest of your smoke detectors to sound the alarm. So if there’s a fire downstairs, the smart smoke detectors in your upstairs bedrooms will immediately wake you up. If you have an existing smart home hub, look for smoke detectors that work with the equipment you already own.

Carbon monoxide detection - Some smart smoke detectors are also capable of alerting you to the presence of deadly carbon monoxide gas. This saves you the extra cost and time associated with buying and installing dedicated carbon monoxide detectors.

Test Results: Nest Protect (Best Overall)

5

What We Like

  • Intuitive setup

  • Early warning system

  • Motion-sensor night light

  • Helpful backup systems

What We Don't Like

  • Expensive

Nest Protect
Lifewire
Nest Protect
Lifewire
Nest Protect
Lifewire

“Simply put, Nest has made one of our most essential home products into a smart, user-friendly, and intuitive device,” our tester said of this combination smoke and carbon monoxide detector. Our reviewer particularly liked the early warning system that alerts you before the alarm sounds, the auto-testing and automatic battery monitoring, and its ability to distinguish between real smoke and shower steam or minor smoke from cooking. And while he noted that it’s an expensive device, our tester explained, “If you value an intuitive, Wi-Fi-enabled system that’s faulty alarm-free, it may be worth the investment.”