Winner
Updated October 2026
Data from the official Shelly and Sonoff sites.
2026 verdict
Between Shelly BLU Door/Window ZB and Sonoff SNZB-04P ZigBee Door/Window Sensor, Shelly BLU Door/Window ZB is the better overall pick in 2026, leading on rating, warranty, and connectivity.
It wins the broader comparison through rating, warranty, and connectivity, while sensors help confirm the result. The only strong reason to choose Sonoff SNZB-04P ZigBee Door/Window Sensor is if price, integrations, and alerts are more important to you than the overall verdict. In practical terms, Shelly BLU Door/Window ZB is the easier product to recommend.
vs
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| Feature | Shelly BLU Door/Window ZB | Sonoff SNZB-04P ZigBee Door/Window Sensor | Winner |
|---|---|---|---|
| Price | $22.99 | $15.90 | Sonoff SNZB-04P ZigBee Door/Window Sensor |
| Rating | 4.5 | 3.7 | Shelly BLU Door/Window ZB |
| Warranty | 2 years | 1 year | Shelly BLU Door/Window ZB |
| Connectivity | Bluetooth, Zigbee | Zigbee | Shelly BLU Door/Window ZB |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Sonoff SNZB-04P ZigBee Door/Window Sensor |
| Sensors | Door & Window Open/Close, Light | Door & Window Open/Close | Shelly BLU Door/Window ZB |
| Alerts | Door & Window Open/Close Alerts, Low Battery Alerts | Door & Window Open/Close Alerts, Tamper Alerts, Low Battery Alerts | Sonoff SNZB-04P ZigBee Door/Window Sensor |
| Weather Resistance | NO | NO | Tie |
| Battery Life | 5 years | 5 years | Tie |
Winner
$22.99
- + Rating: 4.5
- + Warranty: 2 years
- + Connectivity: Bluetooth, Zigbee
- - Price: $22.99 vs $15.90
- - Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
$15.90
- + Price: $15.90
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
- + Alerts: Door & Window Open/Close Alerts, Tamper Alerts, Low Battery Alerts
- - Rating: 3.7 vs 4.5
- - Warranty: 1 year vs 2 years
Frequently Asked Questions
Which is better overall: Shelly BLU Door/Window ZB or Sonoff SNZB-04P ZigBee Door/Window Sensor?
Shelly BLU Door/Window ZB has the stronger overall profile in this comparison, especially for rating, warranty, and connectivity.
What is the biggest difference between Shelly BLU Door/Window ZB and Sonoff SNZB-04P ZigBee Door/Window Sensor?
Price is one of the clearest differences: Shelly BLU Door/Window ZB lists $22.99, while Sonoff SNZB-04P ZigBee Door/Window Sensor lists $15.90.
Which one looks better on price?
Shelly BLU Door/Window ZB is listed at $22.99, while Sonoff SNZB-04P ZigBee Door/Window Sensor is listed at $15.90. Sonoff SNZB-04P ZigBee Door/Window Sensor (better spec).
Who should buy Shelly BLU Door/Window ZB?
Choose Shelly BLU Door/Window ZB if your priority is rating and warranty and that matters more than price.
Who should buy Sonoff SNZB-04P ZigBee Door/Window Sensor?
Choose Sonoff SNZB-04P ZigBee Door/Window Sensor if your priority is price and integrations and that matters more than rating.
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Compare all 32 Door & Window Sensors side by side
You are looking at two of them. The full table lines up all Door & Window Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 32 Door & Window Sensors
- 40 specs compared
- 35 filters
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LoRa Smart Outdoor Contact Sensor
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Solar Outdoor Door Sensor
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Entry Sensor E20
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BLU Door/Window ZB
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Door and Window Sensor
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Outdoor Contact Sensor
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Contact Sensor
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SmartSensor for Doors & Windows
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Window & Door Sensor (3rd Gen)
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Door Window Sensor 7
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SenseGuard DW Gen2
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Micro Door Sensor
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Door & Window
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All-in-One Sensor
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Door Window Sensor 8
- Door & Window Sensors
Window Door 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
SAWF-07P Air Quality Monitor
- Air Quality Monitors
SAWF-08P Air Quality Monitor
- Buttons
RM433R2 Remote Controller
- Buttons
SNZB-01P Zigbee Wireless Switch
- Cameras
CAM GlassView
- Cameras
Cam Outdoor DUO
- Cameras
Cam Slim Gen2
- Cameras
GK-200MP2-B
- Displays
NSPanel Pro Gen2
- Displays
NSPanel Pro
- Dongles
Dongle Lite MG21
- Dongles
Dongle Max
- Dongles
Dongle Plus MG24
- Dongles
Dongle Plus PP10
- Dongles
Dongle-PZG23
- Dongles
Z-Wave 800 PoE Dongle Max
- Dongles
ZBDongle-E
- Dongles
ZBDongle-P
- Door & Window Sensors
DW2-WIFI
- Door & Window Sensors
SNZB-04 ZigBee Wireless Door/Window Sensor