10 Best Smart Smoke Detector 2025 in the United States

The X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector is designed to provide comprehensive safety for your home. Its main strength lies in the interconnected feature; when one unit detects smoke or CO, all interconnected units will alarm, ensuring that you are alerted promptly no matter where you are in the house. With the ability to connect up to 24 devices, this system can effectively cover larger spaces, making it a great choice for families living in bigger homes.

The smoke detector uses advanced detection technology, combining photoelectric and electrochemical sensors, which enhances its reliability in detecting both smoke and harmful CO levels. The informative LCD display is another plus, showing real-time CO levels and battery status, keeping you informed about the unit’s functionality.

On the practical side, the built-in 10-year battery is a significant advantage, removing the hassle of battery replacements during the lifespan of the unit. Installation is straightforward, as they are screw-in models and lightweight, weighing only 300 grams each.

However, this model does not support Wi-Fi, which may limit smart home integration for users looking for more advanced features such as remote monitoring via smartphone apps. If Wi-Fi connectivity is a priority for you, you would need to consider the alternative model, SC07-WX. Additionally, while the coverage per detector is decent, it is recommended for spaces up to 215-430 sq. ft., so you'll need to ensure adequate placement throughout your home for maximum protection.

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.