First Alert SMCO410 Smoke Detector & CO Alarm vs YoLink Photoelectric Smoke Alarm

Updated September 2026

Data from Amazon and official First Alert and YoLink sites.

2026 verdict

For most buyers in 2026, First Alert SMCO410 Smoke Detector & CO Alarm is the safer pick over YoLink Photoelectric Smoke Alarm because of warranty, battery life, and sensors.

Winner

First Alert SMCO410 Smoke Detector & CO Alarm

$64.99

Buy on Amazon USA

The main reason it wins is warranty, battery life, and sensors, and alerts and steam check strengthen that case. YoLink Photoelectric Smoke Alarm still makes sense if price, rating, and tests itself are your priority, but most buyers should still lean toward First Alert SMCO410 Smoke Detector & CO Alarm. As a general recommendation, First Alert SMCO410 Smoke Detector & CO Alarm comes out on top.

Winner

First Alert

First Alert SMCO410 Smoke Detector & CO Alarm

$64.99

Buy on Amazon USA

YoLink

YoLink Photoelectric Smoke Alarm

$49.99

Buy on Amazon USA

Price alerts

Smoke & CO Detector prices change while you decide

We check the price of every Smoke & CO Detector in the catalog daily and email you the drops, whichever one you pick.

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Feature	First Alert SMCO410 Smoke Detector & CO Alarm	YoLink Photoelectric Smoke Alarm	Winner
Price	$64.99	$49.99	YoLink Photoelectric Smoke Alarm
Rating	3.5	5.0	YoLink Photoelectric Smoke Alarm
Warranty	10 years	2 years	First Alert SMCO410 Smoke Detector & CO Alarm
Battery Life	10 years	5 years	First Alert SMCO410 Smoke Detector & CO Alarm
Sensors	Smoke, CO	Smoke	First Alert SMCO410 Smoke Detector & CO Alarm
Alerts	Fire Alerts, CO Alerts, Low Battery Alerts	Fire Alerts, Low Battery Alerts	First Alert SMCO410 Smoke Detector & CO Alarm
Tests Itself	NO	YES	YoLink Photoelectric Smoke Alarm
Steam Check	YES	NO	First Alert SMCO410 Smoke Detector & CO Alarm
Connectivity	Z-Wave	Other	Tie
Integrations	Samsung SmartThings, Home Assistant	Alexa, Home Assistant	Tie
Screen	NO	NO	Tie
Built-in Siren	YES	YES	Tie

Winner

First Alert

First Alert SMCO410 Smoke Detector & CO Alarm

$64.99

Buy on Amazon USA

+ Warranty: 10 years
+ Battery Life: 10 years
+ Sensors: Smoke, CO
- Price: $64.99 vs $49.99
- Rating: 3.5 vs 5.0

YoLink

YoLink Photoelectric Smoke Alarm

$49.99

Buy on Amazon USA

+ Price: $49.99
+ Rating: 5.0
+ Tests Itself: YES
- Warranty: 2 years vs 10 years
- Battery Life: 5 years vs 10 years

Frequently Asked Questions

Which is better overall: First Alert SMCO410 Smoke Detector & CO Alarm or YoLink Photoelectric Smoke Alarm?

First Alert SMCO410 Smoke Detector & CO Alarm has the stronger overall profile in this comparison, especially for warranty, battery life, and sensors.

What is the biggest difference between First Alert SMCO410 Smoke Detector & CO Alarm and YoLink Photoelectric Smoke Alarm?

Price is one of the clearest differences: First Alert SMCO410 Smoke Detector & CO Alarm lists $64.99, while YoLink Photoelectric Smoke Alarm lists $49.99.

Which one looks better on price?

First Alert SMCO410 Smoke Detector & CO Alarm is listed at $64.99, while YoLink Photoelectric Smoke Alarm is listed at $49.99. YoLink Photoelectric Smoke Alarm (better spec).

Who should buy First Alert SMCO410 Smoke Detector & CO Alarm?

Choose First Alert SMCO410 Smoke Detector & CO Alarm if your priority is warranty and battery life and that matters more than price.

Who should buy YoLink Photoelectric Smoke Alarm?

Choose YoLink Photoelectric Smoke Alarm if your priority is price and rating and that matters more than warranty.

Full comparison table

Compare all 19 Smoke & CO Detectors side by side

You are looking at two of them. The full table lines up all Smoke & CO Detectors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.