Water Leak Sensors · Head to head

Shelly Flood 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
The SwitchBot Water Leak Detector outperforms the Shelly Flood in this water leak sensor comparison, carrying a lower price, a higher owner rating, weather resistance, a longer battery life, and wider connectivity plus integrations that include Apple HomeKit and SmartThings on top of the Alexa, Google Home and Home Assistant support both share. It also comes with an on-device alert sound and light that the Shelly Flood doesn't offer. The Shelly Flood's real advantage is doubling as a temperature sensor with freeze-alert coverage, something the leak-only SwitchBot can't match. Buyers wanting the cheaper, better-rated, more broadly connected sensor with a built-in alarm should choose the SwitchBot Water Leak Detector; those who need temperature and freeze monitoring in the same device should pick the Shelly Flood.
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FeatureShelly FloodSwitchBot Water Leak DetectorWinner
Price$24.99$14.29SwitchBot Water Leak Detector
Rating3.84.5SwitchBot Water Leak Detector
Warranty2 years1 yearShelly Flood
Weather ResistanceNOIP67SwitchBot Water Leak Detector
Battery Life1.5 years2 yearsSwitchBot Water Leak Detector
Connectivity2.4 GHz WiFi2.4 GHz WiFi, BluetoothSwitchBot Water Leak Detector
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantSwitchBot Water Leak Detector
SensorsWater Leak, TemperatureWater LeakShelly Flood
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak AlertsShelly Flood
On Device Alert SoundNOYESSwitchBot Water Leak Detector
On Device Alert LightNOYESSwitchBot Water Leak Detector

Frequently Asked Questions

Which is better overall, the Shelly Flood or the SwitchBot Water Leak Detector?

The SwitchBot Water Leak Detector wins overall on price, owner rating, weather resistance, battery life, connectivity and integrations. The Shelly Flood answers with added temperature and freeze-alert sensing.

What is the main difference between the Shelly Flood and the SwitchBot Water Leak Detector?

Sensor scope versus platform reach and local alerting. The Shelly Flood adds temperature and freeze detection, while the SwitchBot Water Leak Detector supports more platforms, including Apple HomeKit and SmartThings, and has a built-in alarm sound and light.

Does either one have a local alarm sound?

Only the SwitchBot Water Leak Detector. It has an on-device alert sound and light, while the Shelly Flood has neither and depends on app or platform notifications.

Which one also monitors temperature and freeze risk?

The Shelly Flood. It includes a temperature sensor with temperature and freeze-temperature alerts, which the SwitchBot Water Leak Detector does not offer.

Who should buy the Shelly Flood?

Buyers who want a WiFi sensor doubling as a temperature and freeze monitor, and don't mind skipping HomeKit or SmartThings support.

Who should buy the SwitchBot Water Leak Detector?

Buyers who want the cheaper, better-rated, more weather-resistant sensor with a built-in alarm and support for Apple HomeKit and SmartThings.

Full comparison table

Compare all 31 Water Leak Sensors side by side

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  • 36 specs compared
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