Updated October 2026
Data from the official Shelly and X-Sense sites.
2026 verdict
X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm beats Shelly Plus Smoke Alarm in 2026, with its clearest edge on price, warranty, and sensors.
The comparison tilts its way because of price, warranty, and sensors, with alerts and tests itself keeping it in front. Choose Shelly Plus Smoke Alarm only if integrations and Built-in light matter more to you than the broader advantage from X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm. That keeps the verdict firmly in favor of X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm.
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| Feature | Shelly Plus Smoke Alarm | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm | Winner |
|---|---|---|---|
| Price | £69.60 | $48.99 | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm |
| Warranty | 3 years | 5 years | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm |
| Integrations | Google Home, Samsung SmartThings, Home Assistant | None | Shelly Plus Smoke Alarm |
| Sensors | Smoke | Smoke, CO | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm |
| Alerts | Fire Alerts, Low Battery Alerts | Fire Alerts, CO Alerts, Low Battery Alerts | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm |
| Built-in Light | YES | NO | Shelly Plus Smoke Alarm |
| Tests Itself | NO | YES | X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, Other | Tie |
| Screen | NO | NO | Tie |
| Built-in Siren | YES | YES | Tie |
| Pathlight | NO | NO | Tie |
| Steam Check | NO | NO | Tie |
£69.60
- + Integrations: Google Home, Samsung SmartThings, Home Assistant
- + Built-in Light: YES
- - Price: £69.60 vs $48.99
- - Warranty: 3 years vs 5 years
Winner
$48.99
- + Price: $48.99
- + Warranty: 5 years
- + Sensors: Smoke, CO
- - Integrations: None vs Google Home, Samsung SmartThings, Home Assistant
- - Built-in Light: NO vs YES
Frequently Asked Questions
Which is better overall: Shelly Plus Smoke Alarm or X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm?
X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm has the stronger overall profile in this comparison, especially for price, warranty, and sensors.
What is the biggest difference between Shelly Plus Smoke Alarm and X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm?
Price is one of the clearest differences: Shelly Plus Smoke Alarm lists £69.60, while X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm lists $48.99.
Which one looks better on price?
Shelly Plus Smoke Alarm is listed at £69.60, while X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm is listed at $48.99. X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm (better spec).
Who should buy Shelly Plus Smoke Alarm?
Choose Shelly Plus Smoke Alarm if your priority is integrations and Built-in light and that matters more than price.
Who should buy X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm?
Choose X-Sense XP0J-iA Smart Hardwired Smoke & CO Alarm if your priority is price and warranty and that matters more than integrations.
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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
- Smoke & CO Detectors
Photoelectric Smoke Alarm
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WiFi Smoke & CO Detector
- Smoke & CO Detectors
Nest Protect (Wired)
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Wi-Fi CO Alarm
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SC07-MR Smart Smoke & CO Alarm
- Smoke & CO Detectors
HS1SA-E Zigbee Smoke Alarm
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Nest Protect (Battery)
- Smoke & CO Detectors
Smart Smoke Detector
- Smoke & CO Detectors
Smoke Alarm
- Smoke & CO Detectors
XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
- Smoke & CO Detectors
Interconnected Smoke Alarm S1-R
- Smoke & CO Detectors
Smoke Alarm E10
- Smoke & CO Detectors
SD19-MN Interconnected Smart Smoke Alarm
- Smoke & CO Detectors
Matter Smoke Detector S1-TM
- Smoke & CO Detectors
Wi-Fi Smoke Alarm
- Smoke & CO Detectors
Smart Smoke & CO Detector with Ring
- Smoke & CO Detectors
Interconnected CO Alarm C1-R
- Smoke & CO Detectors
SC5 Battery Smart Smoke & CO Alarm
- Smoke & CO Detectors
Smart CO Alarm
- Smoke & CO Detectors
SMCO410 Smoke Detector & CO Alarm
- Buttons
BLU Button Tough 1 ZB
- Buttons
BLU RC Button 4 ZB
- Cameras
Camera
- Displays
Wall Display X1i
- Displays
Wall Display XL
- Displays
Wall Display
- Door & Window Sensors
BLU Door/Window Outdoor ZB
- Door & Window Sensors
BLU Door/Window ZB
- Energy Monitors
3EM-63W Gen3
- Energy Monitors
EM Gen3
- Energy Monitors
EM Gen4
- Energy Monitors
EM Mini Gen4
- Energy Monitors
Pro 3EM 3CT63
- Energy Monitors
Pro 3EM-400
- Energy Monitors
Pro 3EM v2
- Energy Monitors
Pro EM-50
- Gas Detectors
GAS (CNG)
- Gas Detectors
GAS (LPG)
- LED Bulbs
Multicolor Bulb E27 Gen3
- Motion Sensors
BLU Motion ZB
- Air Quality Monitors
XR0A-iR Wi-Fi Radon Detector
- Hubs
SBS50 Base Station
- Motion Sensors
Solar Outdoor Spotlight - Motion-Sensor
- Smoke & CO Detectors
SC07-MR Smart Smoke & CO Alarm
- Smoke & CO Detectors
SD19-MN Interconnected Smart Smoke Alarm
- Smoke & CO Detectors
Wi-Fi CO Alarm
- Smoke & CO Detectors
Wi-Fi Smoke Alarm
- Smoke & CO Detectors
WiFi Smoke & CO Detector
- Smoke & CO Detectors
XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
- Smoke & CO Detectors
XP0J-iA Smart Hardwired Smoke & CO Alarm
- Temperature & Humidity Sensors
Smart WiFi Indoor Thermometer
- Temperature & Humidity Sensors
STH0B Smart Thermometer Hygrometer
- Water Leak Sensors
2-in-1 Wi-Fi Water Leak & Freeze Detector
- Water Leak Sensors
Wi-Fi Water Leak Detector