Water Leak Sensors · Head to head

Shelly Flood S Gen4 vs SwitchBot Water Leak Detector

Full Smart Water Leak Sensors comparison in 2026

Updated August 2026
Data from Amazon and official Shelly and SwitchBot sites.
2026 verdict
Shelly Flood S Gen4 edges out SwitchBot Water Leak Detector in 2026, led by warranty, connectivity, and integrations. It has the clearer edge on warranty, connectivity, and integrations, and it stays ahead on alerts. The only strong reason to choose SwitchBot Water Leak Detector is if its specific feature mix is more important to you than the overall verdict. For most setups, Shelly Flood S Gen4 is the smarter buy.
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FeatureShelly Flood S Gen4SwitchBot Water Leak DetectorWinner
Warranty3 years1 yearShelly Flood S Gen4
Connectivity2.4 GHz WiFi, Bluetooth, Zigbee2.4 GHz WiFi, BluetoothShelly Flood S Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantShelly Flood S Gen4
AlertsWater Leak Alerts, Low Battery AlertsWater Leak AlertsShelly Flood S Gen4
Weather ResistanceIP67IP67Tie
Battery Life2 years2 yearsTie
SensorsWater LeakWater LeakTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

Frequently Asked Questions

Which is better overall: Shelly Flood S Gen4 or SwitchBot Water Leak Detector?

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

What is the biggest difference between Shelly Flood S Gen4 and SwitchBot Water Leak Detector?

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

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.

Who should buy SwitchBot Water Leak Detector?

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

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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