Which smart smoke detector has the longest battery life?

The X-Sense SC07-W is a wireless interconnected detector combining photoelectric smoke detection with electrochemical carbon monoxide detection. Its sealed 10-year lithium battery and ability to connect with up to 24 compatible alarms make it suitable for whole-home protection without hardwiring or an app.

This Kidde kit includes two 10-year, sealed-battery smoke alarms with voice alerts. The alarms are interconnected wire-free using a proprietary radio signal, so connected units sound when one alarm detects smoke. They also provide supervised interconnect so the system can alert if an alarm loses connection.

The battery-powered SC5 is a smart combination smoke and carbon monoxide alarm with photoelectric and electrochemical sensors, voice alerts, wireless interconnectivity, and mobile notifications through the First Alert and Google Home apps. It suits households seeking app-connected fire and CO monitoring without hardwiring, especially those replacing Google Nest Protect alarms.

The First Alert SM210V is a photoelectric smoke alarm with a sealed 10-year lithium battery, voice and location alerts, Precision Detection technology, and an end-of-life warning. It suits homeowners who want long-lasting, low-maintenance smoke protection without hardwiring or battery replacements.

This smart combination detector uses photoelectric smoke sensing and electrochemical carbon monoxide detection, with app alerts over 2.4 GHz Wi-Fi. It suits homeowners who want remote notifications, voice alerts, a real-time CO display, and a replaceable battery.

This hardwired smart detector uses two AA batteries for backup and connects to the Ring App over 2.4 GHz Wi-Fi. It detects both smoke and carbon monoxide, provides real-time notifications and voice alerts, and suits homeowners who want smart monitoring with whole-home interconnectivity.

The X-Sense SC07 is a standalone combination alarm with a 10-year sealed battery, photoelectric smoke detection, electrochemical carbon monoxide detection, and an LCD that displays real-time CO concentration. It suits homeowners who want long-term fire and CO protection without replacing batteries or setting up a wireless network.

This battery-powered combination alarm detects both smoke and carbon monoxide and includes voice alerts that identify the danger. Its sealed 10-year battery, self-testing, and reduced nuisance alarms make it suitable for residential living spaces where low maintenance is important.

The First Alert SC5 is a hardwired smart combination smoke and carbon monoxide alarm with a 3V lithium battery backup, Wi-Fi connectivity, mobile alerts, voice warnings, and interconnect capability. It suits homeowners replacing compatible Nest Protect alarms or building a connected home safety system.

The First Alert SMI110 is a standalone ionization smoke alarm with a sealed 10-year lithium battery, Precision Detection technology, and a test and silence button. It suits homeowners who want simple installation, no battery replacements, and reliable smoke protection without smart-home connectivity or carbon monoxide detection.

This is a DETECT smoke alarm with a sealed 10-year battery, designed to avoid battery replacements for the life of the device. It uses photoelectric smoke sensing and includes fast alerts with an 85 dB alarm and multi-color LED status. It suits homes needing reliable, long-life smoke detection without wiring.