Best Smart Smoke Detectors for Google Home

A smart smoke detector that talks to Google Home is a meaningful safety upgrade over a ceiling unit that just beeps. Instead of guessing whether that chirp means a low battery or something worse, you get phone alerts when you're away, voice status checks ("Hey Google, is the smoke detector okay?"), and the ability to silence false alarms from your phone instead of waving a dish towel at the ceiling.

This guide covers the best options for Google Home users in 2026 — from dual smoke-and-CO alarms to budget Wi-Fi detectors that need no hub at all.

What to look for

Google Home integration is the whole point. A detector that only works through its own branded app is still useful, but you lose the voice routines, the Google Home app dashboard, and the ability to tie alerts into broader smart-home automations. The strongest picks surface their status directly through Google Home.1

Dual smoke + CO detection matters more than most people realize. Carbon monoxide is odorless, and a combined sensor costs only slightly more than a smoke-only unit. If you have fuel-burning appliances, an attached garage, or a fireplace, a CO sensor is non-negotiable.2

Power source is a practical trade-off. Battery-powered detectors install anywhere in minutes but need periodic battery swaps. Hardwired units tie into your home's electrical system (usually with a battery backup) and never need a battery change under normal conditions — but they require existing wiring or an electrician.2

A note on Nest Protect: Google's own Nest Protect (2nd Gen) was the category leader for years, but stock is winding down and it's increasingly hard to find. The picks below are the strongest current alternatives for Google Home users.5

Our picks

1. First Alert SC5 — Top pick

The First Alert SC5 is the only detector in this lineup that lists Google Home integration as an explicit, headline feature. It detects both smoke and carbon monoxide, runs on battery power (so you can mount it anywhere without wiring), and sends remote alerts to your phone through the Google Home app rather than a separate branded app.1

That native Google Home connection is what sets it apart. You can check alarm status by voice, receive push notifications when you're away from home, and fold the detector into Google Home routines — for example, triggering lights to flash red if smoke is detected. The dual smoke/CO sensor means you're covered for both major threats with a single device.1

At roughly $111, it's the most expensive pick here, but the Google Home integration and dual detection justify the premium if you're already invested in Google's ecosystem.1

2. Kidde Smart Smoke + CO Alarm — Runner-up

The Kidde Smart Smoke + Carbon Monoxide Alarm is hardwired, which means it taps into your home's electrical system for continuous power (with battery backup) and interconnects with other hardwired Kidde units — if one alarms, they all do. It sends smartphone notifications and supports app-based silencing, which is especially valuable for caregivers who need to know about an alarm even when the resident can't hear the siren.2

At around $67, it's a solid $40+ less than the First Alert SC5, and the hardwired design offers a reliability edge for homes with existing wiring. The trade-off is that Google Home integration is less explicit — the Kidde leans on its own app for alerts and silencing, so you may not get the same voice-status and routine features that the First Alert provides natively.2

If you're outfitting a whole house with hardwired detectors and want smartphone alerts without paying a premium per unit, the Kidde is the practical choice.

3. X-Sense XS01-WX — Budget pick

The X-Sense XS01-WX is a Wi-Fi-connected photoelectric smoke detector that sends instant push notifications to your phone and requires no hub — it connects directly to your Wi-Fi router. Setup is straightforward: mount it, connect to Wi-Fi through the app, and you're done.3

It's the cheapest and easiest entry point in this guide, making it ideal for workshops, rental properties, or supplemental coverage in rooms where you want an extra layer of detection. The photoelectric sensor is good at catching slow, smoldering fires.3

The catch is that it's smoke-only — no carbon monoxide detection. It also relies on the X-Sense app rather than Google Home for its smart features, so you won't get voice status checks or Google Home routine integration. For a no-frills, low-cost detector that still sends phone alerts, though, it's hard to beat.3

4. Google Nest Hub Max — Companion hub

Not a smoke detector, but worth mentioning as the ecosystem anchor. The Nest Hub Max is a 10-inch smart display that serves as a central command center for Google Home. When a compatible smoke detector triggers an alert, the Nest Hub Max can display the notification visually and announce it — useful if you're in another room or if someone in the household has hearing difficulties.4

If you're building a Google Home safety setup, pairing your detector with a Nest Hub Max (or any Google smart display) gives you a visual layer on top of phone and voice alerts.4

How they compare

The First Alert SC5 wins on native Google Home integration and dual smoke/CO coverage — it's the pick if you want everything to work through Google's ecosystem. The Kidde offers hardwired reliability and caregiver-friendly smartphone alerts at a lower price, but leans on its own app. The X-Sense is the easiest and cheapest way to get phone notifications from a smoke detector, with the trade-off of no CO detection and no native Google Home tie-in.

Recomate may earn a commission when you buy through links on this page. That doesn't influence our picks — we recommend what we'd actually install in our own homes.

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