Water Leak Sensors · Head to head

Shelly Flood Gen4 vs Sonoff Zigbee Water Leak Sensor

Full Smart Water Leak Sensors comparison in 2026

Updated June 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Shelly Flood Gen4 wins the 2026 matchup against Sonoff Zigbee Water Leak Sensor, mainly on warranty, connectivity, and integrations. It has the clearer edge on warranty, connectivity, and integrations, and it stays ahead on sensors and alerts. There is still a case for Sonoff Zigbee Water Leak Sensor, but mainly if price, rating, and weather resistance is what you value most. In practical terms, Shelly Flood Gen4 is the easier product to recommend.
vs
FeatureShelly Flood Gen4Sonoff Zigbee Water Leak SensorWinner
Price$39.99$14.99Sonoff Zigbee Water Leak Sensor
Rating4.24.3Sonoff Zigbee Water Leak Sensor
Warranty3 years1 yearShelly Flood Gen4
Weather ResistanceIP44IP67Sonoff Zigbee Water Leak Sensor
Battery Life2 years5 yearsSonoff Zigbee Water Leak Sensor
Connectivity2.4 GHz WiFi, Bluetooth, ZigbeeZigbeeShelly Flood Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Samsung SmartThings, Home Assistant, IFTTTShelly Flood Gen4
SensorsWater Leak, TemperatureWater LeakShelly Flood Gen4
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Low Battery AlertsShelly Flood Gen4
On Device Alert SoundYESNOShelly Flood Gen4
On Device Alert LightYESNOShelly Flood Gen4

Frequently Asked Questions (FAQ)

Which is better overall: Shelly Flood Gen4 or Sonoff Zigbee Water Leak Sensor?
Shelly Flood Gen4 has the stronger overall profile in this comparison, especially for warranty, connectivity, and integrations.
What is the biggest difference between Shelly Flood Gen4 and Sonoff Zigbee Water Leak Sensor?
Price is one of the clearest differences: Shelly Flood Gen4 lists $39.99, while Sonoff Zigbee Water Leak Sensor lists $14.99.
Which one looks better on price?
Shelly Flood Gen4 is listed at $39.99, while Sonoff Zigbee Water Leak Sensor is listed at $14.99. Sonoff Zigbee Water Leak Sensor (better spec).
Who should buy Shelly Flood Gen4?
Choose Shelly Flood Gen4 if your priority is warranty and connectivity 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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