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Water Leak Sensors · Head to head

Aeotec Water Leak Sensor vs Aqara Water Leak Sensor

Full Smart Water Leak Sensors comparison in 2026

Updated September 2026
Data from Amazon and official Aeotec and Aqara sites.
2026 verdict
Between the Aeotec Water Leak Sensor and the Aqara Water Leak Sensor, the Aqara Water Leak Sensor is the stronger all-round leak detector.
Aqara Water Leak Sensor
Winner
Aqara Water Leak Sensor
$18.99
Buy on Amazon USACheck price
It wins on price, on battery life with a CR2032 rated for about two years against roughly one for the Aeotec, and on water protection, since its IP67 shell tolerates immersion while the Aeotec Water Leak Sensor is rated IP20 and must stay dry. The Aeotec Water Leak Sensor counters with a temperature sensor and freeze alerts the Aqara does not have, and it pairs cleanly with SmartThings and Home Assistant as a Zigbee device. The Aqara reaches Apple Home, SmartThings and Matter only through an Aqara hub and offers no local siren. Buy the Aqara Water Leak Sensor for damp, exposed spots and longer service intervals, and the Aeotec Water Leak Sensor if you want temperature and freeze warnings in a SmartThings or Home Assistant home.
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FeatureAeotec Water Leak SensorAqara Water Leak SensorWinner
Price$39.99$18.99Aqara Water Leak Sensor
Rating4.54.2Aeotec Water Leak Sensor
Weather ResistanceIP20IP67Aqara Water Leak Sensor
Battery Life1 year2 yearsAqara Water Leak Sensor
IntegrationsSamsung SmartThings, Home AssistantApple HomeKit, Samsung SmartThings, Home Assistant, MatterAqara Water Leak Sensor
SensorsWater Leak, TemperatureWater LeakAeotec Water Leak Sensor
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Low Battery AlertsAeotec Water Leak Sensor
Warranty1 year1 yearTie
ConnectivityZigbeeZigbeeTie
On Device Alert SoundNONOTie
On Device Alert LightNONOTie

What the differences mean

Water protection

The Aqara Water Leak Sensor is sealed to IP67, so it can be submerged and still report. The Aeotec Water Leak Sensor is rated IP20 and has no meaningful protection against water on the device itself, so it belongs near a leak rather than in a puddle.

Battery and running cost

The Aqara Water Leak Sensor runs about two years on a common CR2032, while the Aeotec Water Leak Sensor uses a larger CR2 rated for roughly a year. Both are battery sensors, but the Aeotec asks for a replacement sooner and with a less common cell.

Temperature and freeze alerts

The Aeotec Water Leak Sensor also reads temperature and can warn before pipes freeze, which the Aqara Water Leak Sensor cannot do because it senses water alone. Near a garage wall or an unheated crawl space, that extra reading is the reason to pick the Aeotec.

Ecosystem reach

The Aqara Water Leak Sensor reaches Apple Home, SmartThings and Matter through an Aqara hub on top of direct Home Assistant support. The Aeotec Water Leak Sensor is a SmartThings and Home Assistant device, with no Apple Home, Google Home or Matter path, so it is the narrower choice for a mixed house.

Local warnings

Neither sensor has an alarm of its own. The Aeotec Water Leak Sensor has no on-device sound or light, and the Aqara Water Leak Sensor is silent too, so in both cases the warning is only as loud as the hub or automation you point at it.

Which one to buy if

What owners say

Owners of both sensors agree on the basics: a leak under a sink or beside a water heater is caught within seconds, and pairing each into a Zigbee hub takes only a moment. Beyond that they notice different strengths. Aeotec Water Leak Sensor owners single out the build quality and the temperature and freeze reporting, and a few mention the sensor occasionally dropping off the network outside a SmartThings or Home Assistant hub. Aqara Water Leak Sensor owners focus on the tiny, discreet body and years of life on one battery, and they warn that non-Aqara Zigbee coordinators can pair inconsistently and that the hub is effectively required for the polished experience.

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.

  • Aeotec Water Leak Sensor
  • Aqara Water Leak Sensor

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Frequently Asked Questions

Which is better, the Aeotec Water Leak Sensor or the Aqara Water Leak Sensor?

The Aqara Water Leak Sensor for most buyers. It costs less, lasts about twice as long on a battery and is IP67 rated, while the Aeotec Water Leak Sensor is IP20 and needs to stay dry. The Aeotec is the better pick only when you also want temperature and freeze monitoring.

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

Their water and temperature coverage. The Aqara Water Leak Sensor is sealed to IP67 and detects water only, while the Aeotec Water Leak Sensor adds a temperature sensor and freeze alerts but is rated IP20, with no protection against water ingress on the device itself.

Does the Aqara Water Leak Sensor work with SmartThings and Home Assistant?

Yes. The Aqara Water Leak Sensor works directly in Home Assistant and reaches SmartThings through an Aqara hub, which is also the path to Apple Home and Matter.

Which one warns about freezing pipes?

The Aeotec Water Leak Sensor. It reads temperature and supports freeze alerts, while the Aqara Water Leak Sensor detects water only and has no temperature or freeze alert.

Who should buy the Aeotec Water Leak Sensor, and who should buy the Aqara Water Leak Sensor?

Buy the Aeotec Water Leak Sensor for a SmartThings or Home Assistant home that also wants temperature and freeze warnings. Buy the Aqara Water Leak Sensor for a cheaper, waterproof Zigbee sensor that will sit in a damp or exposed spot for years.

Full comparison table

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