Updated October 2026
Data from Amazon and official Fibaro and Sonoff sites.
2026 verdict
Sonoff SenseGuard DW Gen2 has the better all-around case than Fibaro Door / Window Sensor 2 in 2026, starting with price, rating, and battery life.
Its clearest strengths are price, rating, and battery life, and it still looks stronger on integrations. Choose Fibaro Door / Window Sensor 2 only if sensors and alerts matter more to you than the broader advantage from Sonoff SenseGuard DW Gen2. That keeps the verdict firmly in favor of Sonoff SenseGuard DW Gen2.
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| Feature | Fibaro Door / Window Sensor 2 | Sonoff SenseGuard DW Gen2 | Winner |
|---|---|---|---|
| Price | $50.45 | £35.00 | Sonoff SenseGuard DW Gen2 |
| Rating | 3.6 | 4.4 | Sonoff SenseGuard DW Gen2 |
| Battery Life | 2 years | 3 years | Sonoff SenseGuard DW Gen2 |
| Integrations | Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant | Sonoff SenseGuard DW Gen2 |
| Sensors | Door & Window Open/Close, Temperature | Door & Window Open/Close | Fibaro Door / Window Sensor 2 |
| Alerts | Door & Window Open/Close Alerts, Temperature Alerts, Tamper Alerts, Low Battery Alerts | Door & Window Open/Close Alerts, Tamper Alerts, Low Battery Alerts | Fibaro Door / Window Sensor 2 |
| Warranty | 1 year | 1 year | Tie |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Z-Wave | Zigbee | Tie |
- + Sensors: Door & Window Open/Close, Temperature
- + Alerts: Door & Window Open/Close Alerts, Temperature Alerts, Tamper Alerts, Low Battery Alerts
- - Price: $50.45 vs £35.00
- - Rating: 3.6 vs 4.4
Winner
- + Price: £35.00
- + Rating: 4.4
- + Battery Life: 3 years
- - Sensors: Door & Window Open/Close vs Door & Window Open/Close, Temperature
- - Alerts: Door & Window Open/Close Alerts, Tamper Alerts, Low Battery Alerts vs Door & Window Open/Close Alerts, Temperature Alerts, Tamper Alerts, Low Battery Alerts
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.
- Fibaro Door / Window Sensor 2
- Sonoff SenseGuard DW Gen2
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Frequently Asked Questions
Which is better overall: Fibaro Door / Window Sensor 2 or Sonoff SenseGuard DW Gen2?
Sonoff SenseGuard DW Gen2 has the stronger overall profile in this comparison, especially for price, rating, and battery life.
What is the biggest difference between Fibaro Door / Window Sensor 2 and Sonoff SenseGuard DW Gen2?
Price is one of the clearest differences: Fibaro Door / Window Sensor 2 lists $50.45, while Sonoff SenseGuard DW Gen2 lists £35.00.
Which one looks better on price?
Fibaro Door / Window Sensor 2 is listed at $50.45, while Sonoff SenseGuard DW Gen2 is listed at £35.00. Sonoff SenseGuard DW Gen2 (better spec).
Who should buy Fibaro Door / Window Sensor 2?
Choose Fibaro Door / Window Sensor 2 if your priority is sensors and alerts and that matters more than price.
Who should buy Sonoff SenseGuard DW Gen2?
Choose Sonoff SenseGuard DW Gen2 if your priority is price and rating and that matters more than sensors.
Full comparison table
Compare all 28 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.
- 28 Door & Window Sensors
- 40 specs compared
- 35 filters
RingWindow and Door Contact Sensor (2nd gen)
$14.99
EufyEntry Sensor
$29.99
PhilipsHue Secure Contact Sensor
$39.99
YoLinkLoRa Smart Outdoor Contact Sensor
$24.99
YoLinkSolar Outdoor Door Sensor
$31.99
AeotecMultipurpose Sensor
$38.99
ShellyBLU Door/Window ZB
€17.25
AqaraDoor and Window Sensor
6% OFF
$17.99$16.99
RingOutdoor Contact Sensor
$49.99
SwitchBotContact Sensor
$16.99
EufyEntry Sensor E20
20% OFF$29.99$23.99- Sonoff
SenseGuard DW Gen2
£35.00 
EcobeeSmartSensor for Doors & Windows
17% OFF$59.99$49.99
AeotecDoor Window Sensor 7
$34.99
CentraliteMicro Door Sensor
$43.51
EveDoor & Window
32% OFF$43.95$29.95
HeimanWindow Door Alarm
$19.98
ArloAll-in-One Sensor
20% OFF$29.99$23.99
SonoffSNZB-04P ZigBee Door/Window Sensor
$18.99
SonoffDW2-WIFI
$12.23
- Door & Window SensorsFibaro
Door / Window Sensor 2
3.6(58)$50.45 
Door & Window SensorsFibaroDoor / Window Sensor
3.2(58)$48.53
HubsFibaroHome Center Lite
3.4(39)$149.00
Motion SensorsFibaroFGBHMS-001
3.5(192)$56.10
PlugsFibaroWall Plug (EU)
4.5(526)€41.26
PlugsFibaroWall Plug with USB (US)
4.0(44)$51.28
Water Leak SensorsFibaroFlood Sensor (Z-Wave)
4.3(235)$61.32
Water Leak SensorsFibaroFlood Sensor (HomeKit)
4.1(359)$43.28
Air Quality MonitorsSonoffSAWF-07P Air Quality Monitor
3.7(193)$39.90
Air Quality MonitorsSonoffSAWF-08P Air Quality Monitor
4.3(169)$49.90
CamerasSonoffCAM GlassView
4.4(30)$34.90
CamerasSonoffCam Outdoor DUO
$79.90
CamerasSonoffCam Slim Gen2
4.4(176)$19.90
CamerasSonoffGK-200MP2-B
4.0(149)30% OFF$9.99$6.99
DisplaysSonoffNSPanel Pro Gen2
3.4(11)€149.90
DisplaysSonoffNSPanel Pro
4.1(75)$129.90
DonglesSonoffDongle Lite MG21
4.5(452)$24.90
DonglesSonoffDongle Max
4.3(603)18% OFF€38.99€32.13
DonglesSonoffDongle Plus MG24
4.7(690)$35.90
DonglesSonoffDongle Plus PP10
4.6(99)$35.90
DonglesSonoffDongle-PZG23
4.6(175)$39.90
DonglesSonoffZ-Wave 800 PoE Dongle Max
4.5(26)$44.90
DonglesSonoffZBDongle-E
4.7(3,743)$24.90
DonglesSonoffZBDongle-P
4.6(5,678)16% OFF$39.99$33.47- Door & Window SensorsSonoff
DW2-WIFI
3.8(1,058)$12.23 
Door & Window SensorsSonoffSNZB-04 ZigBee Wireless Door/Window Sensor
3.7(101)$17.99- Door & Window SensorsSonoff
SNZB-04P ZigBee Door/Window Sensor
4.0(13)$18.99 - Door & Window SensorsSonoff
SenseGuard DW Gen2
4.4(203)£35.00