Updated February 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Sonoff Zigbee Water Leak Sensor edges out Shelly Flood in 2026, led by price, rating, and weather resistance. Its clearest strengths are price, rating, and weather resistance, and it still looks stronger on battery life and integrations. Pick Shelly Flood only when warranty, sensors, and alerts is the deciding factor for your setup. That is why the final call still favors Sonoff Zigbee Water Leak Sensor.
| Feature | Shelly Flood | Sonoff Zigbee Water Leak Sensor | Winner |
|---|---|---|---|
| Price | $24.99 | $14.99 | Sonoff Zigbee Water Leak Sensor |
| Rating | 3.8 | 4.4 | Sonoff Zigbee Water Leak Sensor |
| Warranty | 2 years | 1 year | Shelly Flood |
| Weather Resistance | NO | IP67 | Sonoff Zigbee Water Leak Sensor |
| Battery Life | 1.5 years | 5 years | Sonoff Zigbee Water Leak Sensor |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Samsung SmartThings, Home Assistant, IFTTT | Sonoff Zigbee Water Leak Sensor |
| Sensors | Water Leak, Temperature | Water Leak | Shelly Flood |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts, Low Battery Alerts | Shelly Flood |
| Connectivity | 2.4 GHz WiFi | Zigbee | Tie |
| On Device Alert Sound | NO | NO | Tie |
| On Device Alert Light | NO | NO | Tie |
$24.99
- + Warranty: 2 years
- + Sensors: Water Leak, Temperature
- + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
- - Price: $24.99 vs $14.99
- - Rating: 3.8 vs 4.4
Winner
$14.99
- + Price: $14.99
- + Rating: 4.4
- + Weather Resistance: IP67
- - Warranty: 1 year vs 2 years
- - Sensors: Water Leak vs Water Leak, Temperature
Frequently Asked Questions
Which is better overall: Shelly Flood or Sonoff Zigbee Water Leak Sensor?
Sonoff Zigbee Water Leak Sensor has the stronger overall profile in this comparison, especially for price, rating, and weather resistance.
What is the biggest difference between Shelly Flood and Sonoff Zigbee Water Leak Sensor?
Price is one of the clearest differences: Shelly Flood lists $24.99, while Sonoff Zigbee Water Leak Sensor lists $14.99.
Which one looks better on price?
Shelly Flood is listed at $24.99, while Sonoff Zigbee Water Leak Sensor is listed at $14.99. Sonoff Zigbee Water Leak Sensor (better spec).
Who should buy Shelly Flood?
Choose Shelly Flood if your priority is warranty and sensors and that matters more than price.
Who should buy Sonoff Zigbee Water Leak Sensor?
Choose Sonoff Zigbee Water Leak Sensor if your priority is price and rating and that matters more than warranty.
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