Water Leak Sensors · Head to head

Shelly Flood Gen4 vs YoLink Water Leak Sensor 4

Full Smart Water Leak Sensors comparison in 2026

Updated June 2026
Data from Amazon and official Shelly and YoLink sites.
2026 verdict
Across the 2026 comparison, YoLink Water Leak Sensor 4 earns the nod over Shelly Flood Gen4 on the strength of price, rating, and weather resistance. The comparison tilts its way because of price, rating, and weather resistance, with battery life and alerts keeping it in front. Choose Shelly Flood Gen4 only if warranty, connectivity, and integrations matters more to you than the broader advantage from YoLink Water Leak Sensor 4. That keeps the verdict firmly in favor of YoLink Water Leak Sensor 4.
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FeatureShelly Flood Gen4YoLink Water Leak Sensor 4Winner
Price$39.99$17.99YoLink Water Leak Sensor 4
Rating4.24.7YoLink Water Leak Sensor 4
Warranty3 years2 yearsShelly Flood Gen4
Weather ResistanceIP44IP66YoLink Water Leak Sensor 4
Battery Life2 years5 yearsYoLink Water Leak Sensor 4
Connectivity2.4 GHz WiFi, Bluetooth, ZigbeeOtherShelly Flood Gen4
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterAlexa, Home Assistant, IFTTTShelly Flood Gen4
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery AlertsYoLink Water Leak Sensor 4
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

Frequently Asked Questions (FAQ)

Which is better overall: Shelly Flood Gen4 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 Gen4 and YoLink Water Leak Sensor 4?
Price is one of the clearest differences: Shelly Flood Gen4 lists $39.99, while YoLink Water Leak Sensor 4 lists $17.99.
Which one looks better on price?
Shelly Flood Gen4 is listed at $39.99, while YoLink Water Leak Sensor 4 is listed at $17.99. YoLink Water Leak Sensor 4 (better spec).
Who should buy Shelly Flood Gen4?
Choose Shelly Flood Gen4 if your priority is warranty and connectivity 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 warranty.
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