Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs Eve Water Guard

Full Smart Water Leak Sensors comparison in 2026

Updated July 2026
Data from Amazon and official Aqara and Eve sites.
2026 verdict
The Eve Water Guard is the more capable water leak sensor here, earning the overall edge with a higher owner rating, broader on-device connectivity (Bluetooth plus Thread), and a 100 dB siren with an alert light that the Aqara Water Leak Sensor has neither of. Its headline trick is a 6.5 ft sensing cable extendable to 490 ft, letting one wired unit watch a whole run of appliances instead of a single spot. The Aqara Water Leak Sensor pushes back on value and breadth: it is much cheaper, it runs on a small battery instead of needing a wall outlet, and it reaches more integrations, adding Apple HomeKit and IFTTT through an Aqara Hub, plus richer alert options. Choose the Eve Water Guard for HomeKit and Thread households that want long-run coverage and an onboard siren; pick the Aqara Water Leak Sensor for a cheap, tiny, battery-powered sensor that spreads across many spots.
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FeatureAqara Water Leak SensorEve Water GuardWinner
Price$18.99$78.99Aqara Water Leak Sensor
Rating4.24.5Eve Water Guard
ConnectivityZigbeeBluetooth, Thread ProtocolEve Water Guard
AlertsWater Leak Alerts, Low Battery AlertsWater Leak AlertsAqara Water Leak Sensor
On Device Alert SoundNOYESEve Water Guard
On Device Alert LightNOYESEve Water Guard
Weather ResistanceIP67YESTie
Warranty1 year1 yearTie
IntegrationsApple HomeKit, Home AssistantApple HomeKit, Home AssistantTie
SensorsWater LeakWater LeakTie

Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor or Eve Water Guard?

The Eve Water Guard wins overall on a higher rating, Bluetooth and Thread connectivity, and a 100 dB siren with alert light, plus its extendable sensing cable. The Aqara Water Leak Sensor is cheaper, battery-powered, and reaches more integrations via an Aqara Hub.

What is the biggest difference between these two sensors?

Coverage and power. The Eve Water Guard is a wired sensor with a 6.5 ft cable extendable to 490 ft and an onboard siren, while the Aqara Water Leak Sensor is a tiny, cheap, battery-powered spot sensor with no local alarm.

Which sensor has an onboard alarm?

The Eve Water Guard, with a 100 dB siren and an alert light on the device itself. The Aqara Water Leak Sensor has no on-device sound or light and relies on hub or app notifications.

Does either sensor need to be plugged in?

The Eve Water Guard is wired and needs a wall outlet, which limits placement. The Aqara Water Leak Sensor runs on a CR2032 battery for about 2 years, so it can go almost anywhere.

Who should buy the Eve Water Guard?

Buy it if you run Apple HomeKit or Thread and want to watch a long run of appliances from one wired sensor with a built-in siren and alert light.

Who should buy the Aqara Water Leak Sensor?

Choose it if you want a cheaper, battery-powered, IP67-waterproof spot sensor with HomeKit, IFTTT or Home Assistant support through an Aqara Hub.

Full comparison table

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