Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs Shelly Flood S Gen4

Full Smart Water Leak Sensors comparison in 2026

Updated June 2026
Data from Amazon and official Aqara and Shelly sites.
2026 verdict
For most buyers in 2026, Shelly Flood S Gen4 is the safer pick over Aqara Water Leak Sensor because of warranty, connectivity, and integrations. It has the clearer edge on warranty, connectivity, and integrations, and it stays ahead on on device alert sound and on device alert light. Aqara Water Leak Sensor is still relevant if you care most about its specific feature mix, but Shelly Flood S Gen4 is the stronger recommendation overall. For most setups, Shelly Flood S Gen4 is the smarter buy.
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FeatureAqara Water Leak SensorShelly Flood S Gen4Winner
Warranty1 year3 yearsShelly Flood S Gen4
ConnectivityZigbee2.4 GHz WiFi, Bluetooth, ZigbeeShelly Flood S Gen4
IntegrationsApple HomeKit, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly Flood S Gen4
On Device Alert SoundNOYESShelly Flood S Gen4
On Device Alert LightNOYESShelly Flood S Gen4
Weather ResistanceIP67IP67Tie
Battery Life2 years2 yearsTie
SensorsWater LeakWater LeakTie
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Low Battery AlertsTie

Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor or Shelly Flood S Gen4?

Shelly Flood S Gen4 has the stronger overall profile in this comparison, especially for warranty, connectivity, and integrations.

What is the biggest difference between Aqara Water Leak Sensor and Shelly Flood S Gen4?

Warranty is one of the clearest differences: Aqara Water Leak Sensor lists 1 year, while Shelly Flood S Gen4 lists 3 years.

Who should buy Aqara Water Leak Sensor?

Choose Aqara Water Leak Sensor if your priority is its specific strengths and that matters more than warranty.

Who should buy Shelly Flood S Gen4?

Choose Shelly Flood S Gen4 if your priority is warranty and connectivity and that matters more than the competing advantages.

Full comparison table

Compare all 32 Water Leak Sensors side by side

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  • 32 Water Leak Sensors
  • 36 specs compared
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