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 X-Sense Smart Smoke Detector and Carbon Monoxide Detector Combo stands out in the category of smart smoke detectors, particularly for households looking for a comprehensive safety solution. Its interconnected system allows multiple detectors to work together, ensuring that when one alarm sounds, all do. This feature is great for larger homes, making it easier to alert everyone in case of an emergency.

One of the best features is the app integration, which provides instant notifications when an alarm is triggered, along with alerts for low battery and system faults. You can even test or silence alarms through the app, eliminating the need for a ladder. Moreover, the ability to locate the source of the alarm through the app enhances user convenience significantly.

The battery life is another strong point, with a replaceable lithium battery designed to last up to 10 years. This long lifespan combined with the included batteries ensures that you won’t be constantly replacing them. The product does have some limitations. It's battery-operated and not AC hardwired, which could be a drawback for those who prefer hardwired detectors for uninterrupted power. Additionally, while the app functionality is excellent, users will need to set it up properly to fully benefit from its features. The optional Protect+ Premium subscription for 24/7 professional monitoring may be seen as an extra expense for some. Installation is user-friendly, but some may still find connecting multiple units a bit of a challenge.

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.