17% OFF
$49.99
$59.99
Updated September 2026
Data from Amazon and official Eufy and First Alert sites.
2026 verdict
First Alert SMCO410 Smoke Detector & CO Alarm edges out Eufy Smoke Alarm E10 in 2026, led by battery life, integrations, and sensors.
The comparison tilts its way because of battery life, integrations, and sensors, with alerts keeping it in front. Choose Eufy Smoke Alarm E10 only if price, rating, and tests itself matter more to you than the broader advantage from First Alert SMCO410 Smoke Detector & CO Alarm. That is why First Alert SMCO410 Smoke Detector & CO Alarm wins the verdict here.
vs
Winner
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| Feature | Eufy Smoke Alarm E10 | First Alert SMCO410 Smoke Detector & CO Alarm | Winner |
|---|---|---|---|
| Price | $49.99 | $64.98 | Eufy Smoke Alarm E10 |
| Rating | 4.4 | 3.5 | Eufy Smoke Alarm E10 |
| Battery Life | 5 years | 10 years | First Alert SMCO410 Smoke Detector & CO Alarm |
| Integrations | None | Samsung SmartThings, Home Assistant | First Alert SMCO410 Smoke Detector & CO Alarm |
| Sensors | Smoke | Smoke, CO | First Alert SMCO410 Smoke Detector & CO Alarm |
| Alerts | Fire Alerts, Low Battery Alerts | Fire Alerts, CO Alerts, Low Battery Alerts | First Alert SMCO410 Smoke Detector & CO Alarm |
| Tests Itself | YES | NO | Eufy Smoke Alarm E10 |
| Connectivity | Other | Z-Wave | Tie |
| Screen | NO | NO | Tie |
| Built-in Siren | YES | YES | Tie |
| Built-in Light | NO | NO | Tie |
| Pathlight | NO | NO | Tie |
17% OFF
$49.99
$59.99
- + Price: $49.99
- + Rating: 4.4
- + Tests Itself: YES
- - Battery Life: 5 years vs 10 years
- - Integrations: None vs Samsung SmartThings, Home Assistant
Winner
- + Battery Life: 10 years
- + Integrations: Samsung SmartThings, Home Assistant
- + Sensors: Smoke, CO
- - Price: $64.98 vs $49.99
- - Rating: 3.5 vs 4.4
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- Eufy Smoke Alarm E10
- First Alert SMCO410 Smoke Detector & CO Alarm
Loading price history...
Frequently Asked Questions
Which is better overall: Eufy Smoke Alarm E10 or First Alert SMCO410 Smoke Detector & CO Alarm?
First Alert SMCO410 Smoke Detector & CO Alarm has the stronger overall profile in this comparison, especially for battery life, integrations, and sensors.
What is the biggest difference between Eufy Smoke Alarm E10 and First Alert SMCO410 Smoke Detector & CO Alarm?
Price is one of the clearest differences: Eufy Smoke Alarm E10 lists $49.99, while First Alert SMCO410 Smoke Detector & CO Alarm lists $64.98.
Which one looks better on price?
Eufy Smoke Alarm E10 is listed at $49.99, while First Alert SMCO410 Smoke Detector & CO Alarm is listed at $64.98. Eufy Smoke Alarm E10 (better spec).
Who should buy Eufy Smoke Alarm E10?
Choose Eufy Smoke Alarm E10 if your priority is price and rating and that matters more than battery life.
Who should buy First Alert SMCO410 Smoke Detector & CO Alarm?
Choose First Alert SMCO410 Smoke Detector & CO Alarm if your priority is battery life and integrations and that matters more than price.
Full comparison table
Compare all 25 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.
- 25 Smoke & CO Detectors
- 44 specs compared
- 41 filters
YoLinkPhotoelectric Smoke Alarm
$49.99
HeimanMatter Smoke Detector S1-TM
$49.98
GoogleNest Protect (Wired)
$499.99
X-SenseWi-Fi CO Alarm
X-SenseSC07-MR Smart Smoke & CO Alarm
HeimanHS1SA-E Zigbee Smoke Alarm
€34.99
X-SenseWiFi Smoke & CO Detector
X-SenseWi-Fi Smoke Alarm
GoogleNest Protect (Battery)
$399.99
ShellySmoke Alarm
25% OFF€53.43€39.95- Eufy
Smoke Alarm E10
17% OFF$59.99$49.99 
X-SenseXC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
HeimanInterconnected Smoke Alarm S1-R
$25.99
AqaraSmart Smoke Detector
16% OFF€44.99€37.99
KiddeSmart Smoke & CO Detector with Ring
$69.97
HeimanInterconnected CO Alarm C1-R
10% OFF$29.98$26.99
First AlertSC5 Battery Smart Smoke & CO Alarm
HeimanSmart CO Alarm
17% OFF$59.99$49.99
HeimanMatter Smoke Detector S1-M
$39.99- First Alert
SMCO410 Smoke Detector & CO Alarm
$64.98
CamerasEufy4G Camera S230
3.9(198)$109.99
CamerasEufy4G LTE Cam S330
4.0(1,274)20% OFF$249.99$199.99
CamerasEufyCam S3 Pro
4.4(314)$219.99
CamerasEufyCam S330
4.3(962)32% OFF$219.99$149.99
CamerasEufyCam S4
4.2(281)$349.99
CamerasEufyIndoor Cam C120
4.3(587)$29.99
CamerasEufyIndoor Cam E220
4.4(21,493)9% OFF$54.99$49.99
CamerasEufyIndoor Cam E30
4.4(2,491)14% OFF$69.99$59.99
CamerasEufyOutdoor Cam E210
4.4(1,637)$59.99
CamerasEufyOutdoor Cam E220
4.2(2,041)$79.00
CamerasEufyPoE Bullet-PTZ Cam E50
$249.99
CamerasEufySoloCam E30
4.2(1,336)33% OFF$149.99$99.98
CamerasEufySoloCam E42
4.3(1,282)28% OFF$179.99$129.99
CamerasEufySoloCam S220
4.2(6,652)30% OFF$99.99$69.99
CamerasEufySoloCam S230
4.4(145)$129.99
CamerasEufySoloCam S340
4.2(6,961)30% OFF$199.99$139.99
CamerasEufyTrackLight Cam S1
$299.99
CamerasEufyWall Light Cam S4
4.0(32)$249.99
CamerasEufyWired Cam C31
4.2(635)23% OFF$59.99$45.99
DoorbellsEufyVideo Doorbell C31 (with Battery Pack)
4.0(150)$129.99
