Heiman Smart CO Alarm vs YoLink Photoelectric Smoke Alarm

Updated September 2026

Data from Amazon and official Heiman and YoLink sites.

2026 verdict

Heiman Smart CO Alarm edges out YoLink Photoelectric Smoke Alarm in 2026, led by price, battery life, and integrations.

Winner

Heiman Smart CO Alarm

$47.99$59.9920% OFF

Buy on Amazon USA

The main reason it wins is price, battery life, and integrations, and Built-in light strengthens that case. YoLink Photoelectric Smoke Alarm remains a niche alternative if rating and tests itself matter more than the rest of the comparison. As a general recommendation, Heiman Smart CO Alarm comes out on top.

Winner

Heiman

Heiman Smart CO Alarm

20% OFF

$47.99

$59.99

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

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Feature	Heiman Smart CO Alarm	YoLink Photoelectric Smoke Alarm	Winner
Price	$47.99	$49.99	Heiman Smart CO Alarm
Rating	3.6	5.0	YoLink Photoelectric Smoke Alarm
Battery Life	10 years	5 years	Heiman Smart CO Alarm
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Alexa, Home Assistant	Heiman Smart CO Alarm
Built-in Light	YES	NO	Heiman Smart CO Alarm
Tests Itself	NO	YES	YoLink Photoelectric Smoke Alarm
Connectivity	Thread Protocol	Other	Tie
Screen	NO	NO	Tie
Sensors	CO	Smoke	Tie
Alerts	CO Alerts, Low Battery Alerts	Fire Alerts, Low Battery Alerts	Tie
Built-in Siren	YES	YES	Tie
Pathlight	NO	NO	Tie

Winner

Heiman

Heiman Smart CO Alarm

20% OFF

$47.99

$59.99

Buy on Amazon USA

+ Price: $47.99
+ Battery Life: 10 years
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- Rating: 3.6 vs 5.0
- Tests Itself: NO vs YES

YoLink

YoLink Photoelectric Smoke Alarm

$49.99

Buy on Amazon USA

+ Rating: 5.0
+ Tests Itself: YES
- Price: $49.99 vs $47.99
- Battery Life: 5 years vs 10 years

Frequently Asked Questions

Which is better overall: Heiman Smart CO Alarm or YoLink Photoelectric Smoke Alarm?

Heiman Smart CO Alarm has the stronger overall profile in this comparison, especially for price, battery life, and integrations.

What is the biggest difference between Heiman Smart CO Alarm and YoLink Photoelectric Smoke Alarm?

Price is one of the clearest differences: Heiman Smart CO Alarm lists $47.99, while YoLink Photoelectric Smoke Alarm lists $49.99.

Which one looks better on price?

Heiman Smart CO Alarm is listed at $47.99, while YoLink Photoelectric Smoke Alarm is listed at $49.99. Heiman Smart CO Alarm (better spec).

Who should buy Heiman Smart CO Alarm?

Choose Heiman Smart CO Alarm if your priority is price and battery life and that matters more than rating.

Who should buy YoLink Photoelectric Smoke Alarm?

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

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.