10 Best Smart Smoke Detector 2025 in the United States

The X-Sense Combination Smoke and Carbon Monoxide Detector (Model XP0A-MR31) offers dual protection by detecting both smoke and carbon monoxide. This makes it a practical choice for comprehensive home safety. It uses electrochemical and photoelectric sensors, which are reliable for both types of detection. One of its standout smart features is the voice location alarm that informs you of the specific area where smoke or CO is detected, enhancing emergency response times. Additionally, it provides app alerts and allows you to share these notifications with up to 12 family members, keeping everyone informed during an emergency.

Connectivity is maintained through a base station, ensuring all units are interconnected. Installation is user-friendly with clear instructions, and the device is designed to be sleek and unobtrusive, blending well with home décor. Maintenance is straightforward, thanks to the replaceable CR123A battery that can last up to 5 years, while the device itself has a 10-year lifespan. However, this detector is battery-powered, which means you’ll need to monitor and replace batteries periodically.

An optional Protect+ Premium subscription offers fast fire dispatch, adding a layer of professional monitoring. The product's ease of use, combined with the robust smart features and dual detection, makes it a strong contender for those looking to enhance their home safety. Yet, those who prefer hardwired solutions might find the battery aspect less appealing.

The Google Nest Protect smart smoke detector is a solid choice for anyone looking for enhanced home safety. It doubles as a smoke alarm and carbon monoxide detector, using advanced Split Spectrum Sensor technology to detect both fast and smoldering fires. One of its standout features is its ability to communicate with users through a friendly voice alert, letting you know where the issue is and what type of danger you are facing. This can be particularly valuable in a panic-inducing situation.

Connectivity is another strong point, as it connects to Wi-Fi and sends alerts directly to your phone. This means that even when you're not at home, you can stay informed if something's wrong. The App Silence feature allows you to silence the alarm from your phone, which can be a lifesaver for those little cooking mishaps. Moreover, its Pathlight feature lights up when you walk underneath it, offering a handy guide in the dark.

However, there are some drawbacks worth considering. Being battery operated means you will need to keep an eye on battery life, though the device does provide a Nightly Promise feature to alert you when everything is functioning properly. While the 10-year sensor lifespan is impressive, the need to replace the entire unit after a decade could be seen as a downside. Also, for users who are not tech-savvy, the initial setup and connectivity may pose a challenge, potentially requiring some assistance.

The Kidde Hardwired Smoke & Carbon Monoxide Detector is a reliable choice if you're looking for a device to alert you to both smoke and carbon monoxide with one unit. It uses photoelectric and electrochemical sensors, which means it can detect smoke and dangerous CO levels effectively. Since it is hardwired into your home's electrical system with a 10-year battery backup, you won't need to worry about changing batteries frequently, which adds convenience and lowers long-term costs.

The device includes clear voice alerts that announce "Fire!" or "Warning! Carbon Monoxide!" so you can react immediately without confusion. Another plus is the interconnect feature: if one alarm goes off, all connected alarms will sound, helping to alert everyone in your home quickly. The detector also has LED lights to show its status, and it performs self-tests to ensure it's working properly, though you should still manually test it weekly. Installation requires wiring into your home's ceiling, so it might be best handled by someone comfortable with electrical work or a professional. The product is designed to reduce false alarms caused by cooking, which is helpful in avoiding unnecessary stress.

One small downside is that the warranty covers the alarm for 10 years but doesn't guarantee battery performance for that entire time. Also, while it’s a smart detector in terms of alerts and interconnectivity, it doesn’t have Wi-Fi or app integration, which some other smart detectors offer for remote monitoring. This product suits homeowners who want a dependable, long-lasting alarm that covers both smoke and carbon monoxide detection with straightforward alerts and minimal maintenance.