5 Best Smart Smoke Detectors

Even if you're not too into smart-home tech, consider one of these smart smoke detectors for safety. Here's how to figure out which is best for you.

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5 Best Smart Smoke Detectors Ecomm Via Amazon.com
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What Is a Smart Smoke Detector?

Smart smoke detectors connect to your home’s wireless network, enabling you to receive alerts on your smartphone or computer in case of a house fire.

“The main benefit is being able to monitor your home remotely,” says Matthew Fix, president of Flow Fire Protection in Fort Collins, Colorado.

While remote monitoring brings a sense of security for those who travel a lot or own a vacation home, smart smoke detectors also make life safer and easier when you’re home. The alarms interconnect, so they can tell you where and what the dangers are. They’re also handy because they can be disabled from your phone, solving the age-old problem of scrambling for a stepladder every time you burn your bagels.

“We live in a crazy connected world,” Fix says. “Using this tech to potentially save lives and property is by far one of the best uses, for sure.”

Features to consider when buying a smart smoke detector include:

  • Versatility, since many double as a carbon monoxide (CO) monitor.
  • Price, which depending on features can range from $40 to more than $150.
  • Ease of installation.
  • Remote capabilities from your phone.
  • Voice alerts, which can be more effective for children than a siren.
  • Notifications of which room the fire (or a high CO level) is in.
  • Power source, whether hardwired or battery-operated.
  • Connection with other alarms, so if one goes off they all sound simultaneously, giving you the fastest chance at escape.
  • Low-battery and malfunction alerts (automatic or manual).
  • Automatic emergency contact notification if you don’t respond.
  • Brand or compatibility with other smart home technology, as well as integration with smart home systems.
  • Compatibility with existing hardwired models. If you’re replacing a hardwired model, typically all detectors in the chain should be the same make and model.
  • Third-party certification, such as UL or ETL. “This ensures that the alarm has been tested to the voluntary safety standards,” says Thaddeus Harrington, public affairs specialist with the U.S. Consumer Product Safety Commission.
  • Fire sensing methods, whether by ionization, photoelectric or both. “Ionization-type alarms are good at sensing a fast-burning fire, while photoelectric are really good at slower smoldering types of fires,” says Fix. “It’s recommended to have both types in your house.”

Read on for our picks for the best smart smoke detectors.

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Google Nest Protect Ecomm Via Homedepot
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Best Overall Smart Smoke Detector: Google Nest Protect

Google’s Nest Protect brings the most comprehensive range of features at $119 per unit. It includes a CO detector and real-time alerts, as well as voice and color-coded signals to identify threat type and interconnected alarms (which don’t require WiFi). It also offers hardwire and battery-powered options, and a Split-Spectrum Sensor that detects both slow and fast-burning fires.

Make sure to use the recommended lithium batteries; standard ones will drain quickly. Note that it isn’t fully integrated with Google Home, which means you’ll probably need to use the Nest app with it instead.

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First Alert Onelink Safe And Sound Ecomm Via Amazon
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Best Smart Smoke Detector for Audiophiles: First Alert OneLink Safe & Sound

First Alert’s OneLink Safe & Sound includes many of the features of the Nest Protect, plus a built-in AirPlay 2 speaker for music, which can be voice-controlled with Alexa. Highlights include a CO detector, real-time alerts, room-specific voice alerts, color-changing LED, wireless connection with other OneLink alarms, backup battery-strength monitor and built-in night light with adjustable brightness.

It connects to your smartphone via Bluetooth to Apple HomeKit and Amazon Alexa, although with Alexa the alarms won’t trigger Routines. It also works when not connected to a smart-home hub.

Downsides include no early warning option, no battery self testing (although you can test it through the app), no battery-only option (just hardwire), no ionization detector and a hefty $265 list price. Note: These are sometimes sold deeply discounted.

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X Sense Wifi Smoke Detector Ecomm Via Amazon
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Best Budget Smart Smoke Detector: X-Sense WiFi Smoke Detector

At around $40, the X-Sense won’t empty your wallet even if you buy several for the whole house. This compact alarm is just for smoke (no CO). Features include real-time alerts, automatic self-testing for battery and power connection and in-app silencing.

Downsides include a lack of integration with smart-home platforms, no ionization sensor, no hardwire option and no UL listing, although the manufacturer says it conforms to UL standards. It uses a three-volt lithium CR123A battery and the Tuya smart app. Be aware: It only connects to 2.4GHz WiFi networks. Buy it solo or in a three-pack.

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First Alert Z Wave Smoke Detector Ecomm Via Amazon
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Best Budget, Ring Compatible, Smart Smoke Detector: First Alert Z-Wave

If you own a Ring Alarm or other Z-Wave home-automation system, the First Alert Z-Wave Plus Smoke/CO Alarm (2nd Generation) provides the basics for $40. Features include CO alarm and real-time alerts. Downsides: It’s battery-powered only (no hardwire model) with no ionization sensor, no voice alerts, no self-testing, and no wireless interconnectivity between alarms.

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Kidde Smoke And Carbon Monoxide Detector Ecomm Via Homedepot
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Best Mid-Range Smart Smoke Detector: Kidde Smart Smoke and Carbon Monoxide Alarm

New for 2022, the $90 Kidde Smoke and Carbon Monoxide Detector is a decent compromise between features and price.

Voice alerts warn of fire, CO and low batteries. Other features include real-time alerts, photoelectric sensor, in-app ability to silence false alarms, notifications to friends and family when smoke or CO is detected, a colored LED status ring and compatibility with existing Kidde interconnected alarms as long as those have AC interconnect capability.

It’s also compatible with Amazon Alexa and Google Assistant, so you can use voice commands to check the alarm status and connection. Hardwire is the only option.

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Man installing smoke detector
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Best Free Hack for Existing Detectors

If you have Alexa or Google Home, you can turn your existing old school smoke detectors into smart ones. Just program Alexa/Google to send an alert to your phone or email when their device hears the smoke alarm activate.

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Smoke Carbon Monoxide Detector
Garrett Aitken/Getty Images

Best Inexpensive Hack for Existing Detectors

If you already own a Ring or Alexa Guard system, add a listener that will send an alert to your smartphone when it hears one of your existing smoke detector alarms go off.

Depending on your system, the Ring Alarm Smoke and CO Listener or the Amazon Echo Dot for Alexa will also alert you to the sound of shattering glass, potentially foiling a break-in. The Echo Dot also includes a built-in clock and speaker.

Karuna Eberl
A writer and indie film producer, Karuna Eberl covers the outdoors and nature side of DIY for Family Handyman, exploring wildlife, green living, travel and gardening. She also writes FH’s Eleven Percent column, about dynamic women in the construction workforce. Karuna and her husband and frequent collaborator, Steve Alberts, spent years renovating an abandoned house in a near-ghost town in rural Colorado before moving on to their latest project: Customizing kit homes and building a workshop and outbuildings on their mountain town property, all with economical, sustainable and environmentally sound features.
When they’re not writing or building, you can find them hiking and traveling the backroads, camping in their self-converted van, and DIYing house projects for family. Some of her other credits include Readers Digest, National Parks, National Geographic Channel, BBC, and Atlas Obscura. Karuna is a member of the Outdoor Writers Association of America (OWAA), the Florida Outdoor Writers Association (FOWA), and SATW (Society of American Travel Writers).