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Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs YoLink Water Leak Sensor 4

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Aqara and YoLink sites.
2026 verdict
The YoLink Water Leak Sensor 4 is the stronger of these two water leak sensors, rated higher by its owners and backed by a longer battery life and warranty.
YoLink Water Leak Sensor 4
Winner
YoLink Water Leak Sensor 4
$17.09$23.9929% OFF
Buy on Amazon USACheck price
It also builds in a 105 dB siren and alert light the Aqara Water Leak Sensor does not have, and reports low temperatures so it doubles as a freeze warning. The Aqara Water Leak Sensor answers with the wider smart home reach: through an Aqara Hub it connects to Apple HomeKit, Samsung SmartThings and Matter, while the YoLink Water Leak Sensor 4 only reaches Home Assistant directly (Alexa can only announce its alerts through a skill). Go with the YoLink Water Leak Sensor 4 for a loud, long-range sensor across a bigger property, and the Aqara Water Leak Sensor when HomeKit, SmartThings or Matter access matters more than range.
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FeatureAqara Water Leak SensorYoLink Water Leak Sensor 4Winner
Price$18.99$17.09YoLink Water Leak Sensor 4
Rating4.24.7YoLink Water Leak Sensor 4
Warranty1 year2 yearsYoLink Water Leak Sensor 4
Weather ResistanceIP67IP66Aqara Water Leak Sensor
Battery Life2 years5 yearsYoLink Water Leak Sensor 4
IntegrationsApple HomeKit, Samsung SmartThings, Home Assistant, MatterHome AssistantAqara Water Leak Sensor
SensorsWater LeakWater Leak, TemperatureYoLink Water Leak Sensor 4
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery AlertsYoLink Water Leak Sensor 4
On Device Alert SoundNOYESYoLink Water Leak Sensor 4
On Device Alert LightNOYESYoLink Water Leak Sensor 4
ConnectivityZigbeeOtherTie

What the differences mean

Smart home integration

Through an Aqara Hub, the Aqara Water Leak Sensor reaches Apple HomeKit, Samsung SmartThings and Matter, on top of Home Assistant. The YoLink Water Leak Sensor 4 reaches only Home Assistant directly, and Alexa can only announce its alerts through the YoLink skill rather than treat it as a device.

Range and hub technology

The Aqara Water Leak Sensor uses Zigbee, a short-range mesh. The YoLink Water Leak Sensor 4 uses YoLink's proprietary LoRa radio, rated for far longer range, which is what lets owners place it in a detached garage or outbuilding a Zigbee sensor could not reach.

On-device alarm and light

The YoLink Water Leak Sensor 4 sounds a 105 dB siren and lights up on the device itself, even if the hub is offline. The Aqara Water Leak Sensor has neither, so its alerts only reach a hub or app.

Freeze and temperature sensing

The YoLink Water Leak Sensor 4 also reports low temperatures and sends freeze alerts, useful for pipes in an unheated space. The Aqara Water Leak Sensor is a dedicated water-leak sensor with no temperature reading.

Battery life and warranty

The YoLink Water Leak Sensor 4 is rated for about 5 years of battery life and carries a 2 year warranty. The Aqara Water Leak Sensor is rated for about 2 years on its battery and a 1 year warranty.

Which one to buy if

What owners say

Owners of both sensors report catching leaks early, but they lean on different things to explain why. Aqara Water Leak Sensor owners praise how small and discreet it is tucked under a sink or behind a washing machine, how fast it fires, and how long a single CR2032 battery lasts, while pointing out that Apple HomeKit, SmartThings and Matter only work through an Aqara Hub and that Alexa and Google Home are not supported at all. YoLink Water Leak Sensor 4 owners talk about real saves, a water heater or a washing machine hose caught before it did real damage, thanks to a 105 dB alarm that still fires locally if the hub goes offline, and they credit the long LoRa range for reaching a detached garage or outbuilding a Zigbee sensor could not. Their main complaint is needing the separate YoLink hub and a companion app some found confusing to configure at first.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Aqara Water Leak Sensor
  • YoLink Water Leak Sensor 4

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Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor or YoLink Water Leak Sensor 4?

The YoLink Water Leak Sensor 4, for most buyers: it carries a higher owner rating, a longer warranty and battery life, and a built-in siren and light the Aqara Water Leak Sensor lacks. The Aqara Water Leak Sensor still wins on smart home reach, since its Aqara Hub also unlocks Apple HomeKit, SmartThings and Matter.

What is the biggest difference between Aqara Water Leak Sensor and YoLink Water Leak Sensor 4?

The Aqara Water Leak Sensor reaches more smart home platforms through its Aqara Hub, including Apple HomeKit, SmartThings and Matter. The YoLink Water Leak Sensor 4 answers back with a built-in 105 dB alarm and light, longer LoRa range, and added freeze-temperature sensing.

Do the Aqara Water Leak Sensor or the YoLink Water Leak Sensor 4 work with Apple HomeKit or SmartThings?

The Aqara Water Leak Sensor does, through an Aqara Hub, which also unlocks Matter. The YoLink Water Leak Sensor 4 has no Apple HomeKit, SmartThings or Matter support, connecting only to Home Assistant directly.

Does either sensor have an on-device alarm?

The YoLink Water Leak Sensor 4 does, a 105 dB siren with an alert light that fires even if the hub is offline. The Aqara Water Leak Sensor has no on-device alert sound or light.

Who should buy the Aqara Water Leak Sensor?

Buyers already in an Apple HomeKit, SmartThings or Matter home who want a small, discreet Zigbee sensor and are willing to route alerts through a hub or app instead of an onboard alarm.

Who should buy the YoLink Water Leak Sensor 4?

Buyers covering a large property who want long LoRa range, a loud independent siren, and freeze-temperature warnings alongside leak detection.

Full comparison table

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