Shelly Flood vs YoLink Water Leak Sensor 4

Full Smart Water Leak Sensors comparison in 2026

Updated February 2026
Data from Amazon and official Shelly and YoLink sites.
2026 verdict
In 2026, YoLink Water Leak Sensor 4 is the better overall pick. The comparison tilts its way because of price, rating, and weather resistance, with battery life and on device alert sound keeping it in front. Shelly Flood is still relevant if you care most about integrations, but YoLink Water Leak Sensor 4 is the stronger recommendation overall. That is enough to make YoLink Water Leak Sensor 4 the better pick for most buyers.
FeatureShelly FloodYoLink Water Leak Sensor 4Winner
Price$24.99$16.99YoLink Water Leak Sensor 4
Rating4.04.8YoLink Water Leak Sensor 4
Weather ResistanceNOIP67YoLink Water Leak Sensor 4
Battery Life1.5 years5 yearsYoLink Water Leak Sensor 4
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home AssistantAlexa, Home Assistant, IFTTTShelly Flood
On Device Alert SoundNOYESYoLink Water Leak Sensor 4
On Device Alert LightNOYESYoLink Water Leak Sensor 4
Warranty2 years2 yearsTie
Connectivity2.4 GHz WifiOtherTie
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Freeze Temperature Alerts, Low Battery AlertsTie
$24.99
BUY NOW
  • + Integrations: Google Home, Alexa, Samsung SmartThings, Home Assistant
  • - Price: $24.99 vs $16.99
  • - Rating: 4.0 vs 4.8
Winner
$16.99
BUY NOW
  • + Price: $16.99
  • + Rating: 4.8
  • + Weather Resistance: IP67
  • - Integrations: Alexa, Home Assistant, IFTTT vs Google Home, Alexa, Samsung SmartThings, Home Assistant

Frequently Asked Questions (FAQ)

Which is better overall: Shelly Flood or YoLink Water Leak Sensor 4?
YoLink Water Leak Sensor 4 has the stronger overall profile in this comparison, especially for price, rating, and weather resistance.
What is the biggest difference between Shelly Flood and YoLink Water Leak Sensor 4?
Price is one of the clearest differences: Shelly Flood lists $24.99, while YoLink Water Leak Sensor 4 lists $16.99.
Which one looks better on price?
Shelly Flood is listed at $24.99, while YoLink Water Leak Sensor 4 is listed at $16.99. YoLink Water Leak Sensor 4 (better spec).
Who should buy Shelly Flood?
Choose Shelly Flood if your priority is integrations and that matters more than price.
Who should buy YoLink Water Leak Sensor 4?
Choose YoLink Water Leak Sensor 4 if your priority is price and rating and that matters more than integrations.
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