Updated January 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.
| Feature | Fibaro Door / Window Sensor 2 | Sonoff SenseGuard DW Gen2 | Winner |
|---|---|---|---|
| Price | $50.45 | €40.91 | Sonoff SenseGuard DW Gen2 |
| Rating | 3.6 | 4.5 | Sonoff SenseGuard DW Gen2 |
| Battery Life | 2 years | 3 years | Sonoff SenseGuard DW Gen2 |
| Integrations | Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT | 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 |
$50.45
- + Sensors: Door & Window Open/Close, Temperature
- + Alerts: Door & Window Open/Close Alerts, Temperature Alerts, Tamper Alerts, Low Battery Alerts
- - Price: $50.45 vs €40.91
- - Rating: 3.6 vs 4.5
Winner
- + Price: €40.91
- + Rating: 4.5
- + 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
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 €40.91.
Which one looks better on price?
Fibaro Door / Window Sensor 2 is listed at $50.45, while Sonoff SenseGuard DW Gen2 is listed at €40.91. 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.
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