Apple's Sound Recognition feature now enables HomePod mini and second-generation HomePod to detect smoke and carbon monoxide alarms, sending notifications to your iPhone, iPad, or Apple Watch. The functionality, accessible through the Home app, represents a significant safety enhancement for homes without smart detectors, though Apple cautions it shouldn't replace dedicated safety systems.

The feature requires Apple's updated Home app architecture introduced in 2022 with iOS 16.4 and iPadOS 16.4.1. Users can enable it by navigating to Home Settings, then Safety & Security, and toggling on Smoke & CO Alarm detection. When activated alongside a smart camera, the system can display live video feeds during alerts, providing real-time visual confirmation of potential emergencies.

First introduced on iPhone in 2020, Sound Recognition can identify various sounds including doorbells, running water, and pet noises. However, user reports suggest inconsistent performance with smoke alarms, particularly with interconnected systems that produce staggered alerts. While the feature offers peace of mind for remote monitoring, Apple emphasizes it's supplementary rather than a replacement for traditional safety devices in high-risk situations.