First Alert Onelink Safe & Sound
The First Alert Onelink Safe & Sound is a premium choice for those wanting to combine smoke and carbon monoxide protection with the convenience of a smart home speaker. With robust Alexa integration, excellent audio quality, and clear emergency communication, it offers a comprehensive solution for modern homes. The higher price may be justified for users looking for an all-in-one safety and smart home speaker solution. If the price and smart features are not essential, more basic models might suffice.
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
 Best Buy 15-day returns (in store too) · free return shipping · free shipping on $35+ | $149.99 | Oct 21, 2026 | Buy Now |
 Amazon Sold by Postage Plus 108 | $160.99 | May 12, 2025, may have changed | Buy Now |
L litvon | $172.67 | May 12, 2025, may have changed | Buy Now |
E EveryMarket | $210.78 | May 12, 2025, may have changed | Buy Now |
 Newegg Sold by Emma radius | $228.88 | May 12, 2025, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Used & Refurbished
✨ See 4 used & refurbished prices with ShopSavvy ProGet the app →Price history summary
Lowest new price we recorded at major retailers (Amazon, Walmart, Best Buy, Target, The Home Depot and Lowes) in the last 90 days: $149.99 at Best Buy on Aug 26, 2026.
Range over the last 12 months: $149.99 (Best Buy, Aug 26, 2026) to $277.99 (retailers/amazon, Dec 15, 2025). The lowest current offer at these retailers, $149.99 at Best Buy, matches its 90-day low. Based on 5 recorded prices since Dec 15, 2025 for offers sold by these retailers themselves (not marketplace sellers). Summary as of Oct 20, 2026.
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Product Score
Calculated by ShopSavvy from the professional reviews and customer ratings we collected for this product.
Why this score?
First Alert Onelink Safe & Sound earns a moderate score due to its impressive integration of smart features and overall ease of installation, providing undeniable value as a smoke and carbon monoxide detector along with Alexa compatibility. However, significant weaknesses, such as limited Alexa functionality (e.g., inability to join music groups) and inconsistent app performance, detract from its user experience. While the device delivers robust performance in safety functions and audio output, the high price may deter those seeking a straightforward smoke alarm without smart features.
Score
First Alert Onelink Safe & Sound earns a moderate score due to its impressive integration of smart features and overall ease of installation, providing undeniable value as a smoke and carbon monoxide detector along with Alexa compatibility. However, significant weaknesses, such as limited Alexa functionality (e.g., inability to join music groups) and inconsistent app performance, detract from its user experience. While the device delivers robust performance in safety functions and audio output, the high price may deter those seeking a straightforward smoke alarm without smart features.
Scores
Pros
- •Integrates seamlessly with Amazon Alexa, offering hands-free voice control for various smart home devices.
- •Dual-functionality as a smoke and carbon monoxide alarm along with a premium speaker with immersive 360-degree audio.
- •High-quality sound experience for playing music, audiobooks, and even delivering news updates.
- •Easy to install using existing hardwiring, includes adapter plugs for convenience.
- •Remote notifications via the Onelink Home app alert users of emergencies, adding an extra layer of safety.
- •Announcements of danger locations through an 85-decibel alarm plus voice alert ensure clear communication during emergencies.
- •Advanced microphones capture voice commands from any direction, even while music is playing.
- •Compatible with Apple HomeKit, enhancing smart home integration and functionality.
Cons
- •Price point is on the higher side compared to traditional alarms without smart features.
- •Some users might find the Alexa integration redundant if they already have other Alexa-enabled devices in their homes.
- •Requires a reliable Wi-Fi connection for optimal performance and access to smart features.
- •Certain users may experience reliability issues with the Onelink Home app notifications (though this is relatively rare).
Bottom Line
The First Alert Onelink Safe & Sound is a premium choice for those wanting to combine smoke and carbon monoxide protection with the convenience of a smart home speaker. With robust Alexa integration, excellent audio quality, and clear emergency communication, it offers a comprehensive solution for modern homes. The higher price may be justified for users looking for an all-in-one safety and smart home speaker solution. If the price and smart features are not essential, more basic models might suffice.
What Reviewers Are Saying
Customer Ratings
Based on 1,198 reviews from Amazon
Professional Reviews
First Alert Onelink Safe & Sound Review
First Alert Onelink Safe & Sound Review
First Alert Onelink Safe & Sound Review: Alexa in a Smoke Detector? It’s an Inspired (if Expensive) Idea
Onelink Safe & Sounds Adds Smart Home Features to Smoke Detector
First Alert Onelink Safe & Sound – Combined Smoke and Carbon Monoxide Alarm with Alexa | NewsWatch Review
First Alert OneLink Wi-Fi Smoke and CO Alarm review: Siri can't save First Alert's surprisingly dumb connected smoke alarm
First Alert Onelink Safe & Sound Review: A Smart Smoke Detector with Alexa
Review: First Alert's Onelink Safe & Sound Packs HomeKit, a Speaker, and Alexa Into a Smoke Detector
First Alert Onelink Smart Smoke + Carbon Monoxide Alarm Review
Common Questions
Does the First Alert Onelink Safe & Sound have a nightlight feature?Published 2 years ago
Yep, the First Alert Onelink Safe & Sound does have a nightlight feature. The manufacturer mentions that it's Apple HomeKit compatible, so you can use Siri and the Apple Home app to control it. This...
Read full answerHow is the sound quality of the speaker on the First Alert Onelink Safe & Sound?Published 2 years ago
So, about the sound quality on the First Alert Onelink Safe & Sound—it's pretty solid! Besides being a smoke and carbon monoxide detector, it's also a surprisingly good speaker. From what we've gathe...
Read full answerCan the First Alert Onelink Safe & Sound be used as part of a whole-home audio system?Published 2 years ago
Yep, you can definitely use the First Alert Onelink Safe & Sound as part of a whole-home audio system. It works with Amazon Alexa, so you can control it using voice commands to play music, control sma...
Read full answerDoes the First Alert Onelink Safe & Sound work with Apple HomeKit?Published 2 years ago
Yes, the First Alert Onelink Safe & Sound works with Apple HomeKit. It's a smart smoke and carbon monoxide detector that fits right into the Apple ecosystem, giving you some extra smart home perks too...
Read full answerHow loud is the alarm on the First Alert Onelink Safe & Sound?Published 2 years ago
The alarm on the First Alert Onelink Safe & Sound is pretty loud. From what we've found, it should wake you up from sleep or get your attention even if you're in another room. The manufacturer says ...
Read full answer📚More About First Alert Onelink Safe & Sound
Discussion
Alternatives to Consider
If the First Alert Onelink Safe & Sound doesn't quite fit your needs, here are some other options to consider:
Google Nest Protect (2nd gen)
The Google Nest Protect (2nd gen) offers superior compatibility with Google Home ecosystems, making it a great choice for folks already invested in Google's smart home technology. It features a unique light ring for notifications and can alert people via voice, providing real-time updates on smoke or carbon monoxide levels.
Compare prices →
Kidde Smoke & CO Detector
At around $33, the Kidde Smoke & CO Detector offers essential smoke and carbon monoxide detection without extra features. A budget-friendly option for basic safety coverage.
First Alert Z-Wave Carbon Monoxide Alarm
For those with the SmartThings hub, the First Alert Z-Wave Carbon Monoxide Alarm integrates seamlessly, enabling home automation and centralized control. Ideal for folks seeking reliable and cost-effective smart home functionality while maintaining essential detection features.
Compare prices →
X-Sense Smoke Detector
The X-Sense Smoke Detector is a budget-friendly choice that, while not fully 'smart,' provides reliable smoke detection and integrates with Tuya's platform for mobile alerts. Focusing on essential function over features like dual detection and speakers, it offers practical protection for many.
ShopSavvy compares prices across thousands of retailers so you always get the best deal. Prices are collected from retailer listings, and each one shows the date we last saw it. Our expert reviews and community discussion help you make informed buying decisions.