Shelly Flood vs Sonoff Zigbee Water Leak Sensor

Full Smart Water Leak Sensors comparison in 2026

Updated February 2026
Data from Amazon and official Shelly and Sonoff sites.
2026 verdict
Looking at the full picture in 2026, Sonoff Zigbee Water Leak Sensor gets the edge. 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.
vs
FeatureShelly FloodSonoff Zigbee Water Leak SensorWinner
Price$24.99$14.99Sonoff Zigbee Water Leak Sensor
Rating4.04.4Sonoff Zigbee Water Leak Sensor
Warranty2 years1 yearShelly Flood
Weather ResistanceNOIP67Sonoff Zigbee Water Leak Sensor
Battery Life1.5 years5 yearsSonoff Zigbee Water Leak Sensor
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Samsung SmartThings, Home Assistant, IFTTTSonoff Zigbee Water Leak Sensor
SensorsWater Leak, TemperatureWater LeakShelly Flood
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Low Battery AlertsShelly Flood
Connectivity2.4 GHz WifiZigbeeTie
On Device Alert SoundNONOTie
On Device Alert LightNONOTie
Shelly

Shelly Flood

$24.99
BUY NOW
  • + Warranty: 2 years
  • + Sensors: Water Leak, Temperature
  • + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts
  • - Price: $24.99 vs $14.99
  • - Rating: 4.0 vs 4.4

Frequently Asked Questions (FAQ)

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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  16. Fibaro Flood Sensor (Z-Wave)
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  17. Aeotec Water Sensor 7 Pro
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  18. Fibaro Flood Sensor (HomeKit)
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  19. Shelly Flood
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  20. Heiman Smart Water Leakage Sensor
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Shelly

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