Water Leak Sensors · Head to head

Shelly Flood vs Shelly Flood Gen4

Full Smart Water Leak Sensors comparison in 2026

Updated June 2026
Data from Amazon and official Shelly site.
2026 verdict
Shelly Flood Gen4 has the better all-around case than Shelly Flood in 2026, starting with rating, warranty, and weather resistance. It wins the broader comparison through rating, warranty, and weather resistance, while battery life and connectivity helps confirm the result. Choose Shelly Flood only if price matters more to you than the broader advantage from Shelly Flood Gen4. In practical terms, Shelly Flood Gen4 is the easier product to recommend.
vs
FeatureShelly FloodShelly Flood Gen4Winner
Price$24.99$39.99Shelly Flood
Rating3.84.2Shelly Flood Gen4
Warranty2 years3 yearsShelly Flood Gen4
Weather ResistanceNOIP44Shelly Flood Gen4
Battery Life1.5 years2 yearsShelly Flood Gen4
Connectivity2.4 GHz WiFi2.4 GHz WiFi, Bluetooth, ZigbeeShelly Flood Gen4
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterShelly Flood Gen4
On Device Alert SoundNOYESShelly Flood Gen4
On Device Alert LightNOYESShelly Flood Gen4
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsTie

Frequently Asked Questions (FAQ)

Which is better overall: Shelly Flood or Shelly Flood Gen4?
Shelly Flood Gen4 has the stronger overall profile in this comparison, especially for rating, warranty, and weather resistance.
What is the biggest difference between Shelly Flood and Shelly Flood Gen4?
Price is one of the clearest differences: Shelly Flood lists $24.99, while Shelly Flood Gen4 lists $39.99.
Which one looks better on price?
Shelly Flood is listed at $24.99, while Shelly Flood Gen4 is listed at $39.99. Shelly Flood (better spec).
Who should buy Shelly Flood?
Choose Shelly Flood if your priority is price and that matters more than rating.
Who should buy Shelly Flood Gen4?
Choose Shelly Flood Gen4 if your priority is rating and warranty and that matters more than price.
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