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Nest Protect - Smoke & CO Alarm (2nd Gen, 2015)

Nest Protect - Smoke & CO Alarm (2nd Gen, 2015)
alaScore 100

670 reviews

Aug, 2020

alaTest has collected and analyzed 670 reviews of Nest Protect - Smoke & CO Alarm (2nd Gen, 2015). The average rating for this product is 4.7/5, compared to an average rating of 4.6/5 for other products in the same category for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Nest Protect - Smoke & CO Alarm (2nd Gen, 2015) is awarded an overall alaScore™ of 100/100 = Excellent quality.

Review analysis

(Based on 670 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 10 of 444 Show Reviews: in English | in other languages (226)

Expert review by (

Nest Protect review (2015): Improved safety makes it easier to recommend


A pricey, but solid addition to your home. The Nest Protect takes something as boring as detecting smoke and makes it slightly exciting. Updated sensors reduce false alarms and are quicker to determine when there's a problem. The companion app, path...

Fewer false alarms ; Works with Nest's other products to tell you when something is amiss ; Multiple Protects can communicate with each other even when yourWiFi goes down ; Alerts you to problems when you're away from home ; Path light feature keeps...

Pricey compared to regular smoke detectors

Compared to the average smoke detector, the Nest Protect seems like an extravagance. It's more than double the price of a garden-variety device and although it's pretty, it's also something you'll rarely look at. But, when you're thinking about safety,...

Sep, 2015

Expert review by : Alina Bradford (

What you should do if your Nest Protect doesn't check in


Using your Nest Protect manually is a bummer. Here's how to get it working with the app again.

Jan, 2019

Expert review by : Megan Wollerton (

Nest Protect (second generation) review


Now, a second-generation Protect has arrived and it's noticeably sleeker and smarter than its predecessor. With a slimmer profile, a new in-app "silence" button that allows you to turn off smoke and CO alarms remotely (the original Nest Protect doesn't...

The new Nest Protect has a more refined design than the original model, as well a handy in-app alarm silence feature to go along with its already useful connected features and integration with other Nest products and IFTTT.

The history section in the app is empty and it doesn't have enough new features to justify an upgrade from the original.

No other smoke and carbon monoxide detectors available today can match the second-gen Nest Protect in terms of looks and options, making it a great buy for anyone who appreciates design and connected features.

Jul, 2015

Expert review by : John R. Delaney (

Nest Protect Review


In October of 2011 Nest Labs burst onto the digital home scene with the release of the Nest Learning Thermostat, a unique (albeit expensive) device that can create heating and cooling schedules based on your daily habits and can be managed from...

Minimalist design. Intuitive light ring. Loud alarms. Remote monitoring.

Expensive. No text message or email alerts.

The well-designed but pricey Nest Protect is one of the smartest smoke and carbon monoxide detectors you'll find. You can monitor and manage it using a smartphone, and silence it with a wave of your hand.

Jan, 2014

Expert review by : Dan Seifert (

Nest Protect review


Smoke detectors are boring. They're not attractive, not fun to deal with, and probably came with the house or apartment when you moved in. They make themselves known when you're cooking and burn the roast, or at 2:00 AM when their batteries need to be...

The Protect is not a product for today, it's a product for the future, and if everything goes the way Nest wants it to go, the future is looking pretty bright. I didn't think much about my smoke detector before, but I do now, and really, that's the...

Jan, 2014

Expert review by : Christopher Null (

Best smart smoke detector to keep your home safe


The concept is simple: A smoke alarm that tells you there's a fire nearby is a great, but a smoke alarm that tells you there's a fire no matter where you are is even better. Smart smoke and carbon monoxide (CO) detectors are one of the most useful...

At $119, the Nest Protect isn’t cheap, but pricier options are out there. In this case, though, the outlay is worth it.

Jan, 2020

Expert review by : Jennifer Pattison Tuohy (

The Best Smart Smoke Alarm


A former firefighter tested seven smoke and CO detectors, choosing the Nest Protect for its solid performance, simple networking, and self-testing.

Oct, 2016

Expert review by : John Carlsen (

Nest Protect 2nd Gen Review


The Nest Protect 2nd Gen wireless smoke detector is heavy on features and boasts a unique aesthetic that serves to separate it from traditional smoke alarms. It is one of only two battery operated smoke alarms in our top 10 list that is capable of...

It has numerous features including smartphone connectivity and safety lights that can guide your way to safety in a dark or smoky environment.

The manufacturer warranty is only for two years.

The Nest Protect 2nd Gen wireless smoke detector boasts a number of impressive features, but its brief warranty period of two years means it may need early replacement.

Oct, 2014

Expert review by : David Ludlow (

Nest Protect Review | Trusted Reviews


Nest Protect review: the smartest smoke and CO detector that you buy, is also the least annoying making the high price easier to stomach.

Exceptionally smart ; Easy to install ; Works brilliantly


The Nest Protect is the smartest smoke detector you can buy – and the least annoying; but it's quite expensive

Dec, 2018

Expert review by : Adrian Willings (

Nest Protect V2 review: A smart smoke alarm capable of blowing its own horn


Multiple sensors including smoke and carbon monoxide ; Works with IFTTT ; Self-test capable ; Intelligent warning systems ; Integrates with other Nest products

Expensive - even more so as a multi-room system ; Occasional issues with WiFi connection

Nest Protect is certainly a powerful and flexible bit of kit. You might wonder why you need a smoke alarm with so many bells and whistles, but when you realise what it can do it soon becomes clear why it's worth it.

Nov, 2018

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