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Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs Sonoff Zigbee Water Leak Sensor

Full Smart Water Leak Sensors comparison in 2026

Updated June 2026
Data from Amazon and official Aqara and Sonoff sites.
2026 verdict
The better Zigbee water leak sensor of these two is the Sonoff Zigbee Water Leak Sensor, which is rated to last more than twice as long on a battery and works with more platforms without a brand hub.
Sonoff Zigbee Water Leak Sensor
Winner
Sonoff Zigbee Water Leak Sensor
$14.99
Buy on Amazon USACheck price
Its CR2477 cell is rated for 5 years against 2 years on the CR2032 of the Aqara Water Leak Sensor, and its spec sheet lists Google Home, SmartThings and Home Assistant directly, with Apple Home and Matter through a SONOFF bridge. It also costs less and accepts an optional sensing cable. The Aqara Water Leak Sensor is the smaller of the two, 15 mm thin and 18 g, and brings Apple Home, SmartThings and Matter through an Aqara Hub. Both are IP67 rated, both need a Zigbee coordinator, both send low battery alerts and neither has a siren or light of its own. Choose the Sonoff Zigbee Water Leak Sensor for Home Assistant or a mixed smart home, and the Aqara Water Leak Sensor for an Aqara hub setup or the tightest spots.
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FeatureAqara Water Leak SensorSonoff Zigbee Water Leak SensorWinner
Price$18.99$14.99Sonoff Zigbee Water Leak Sensor
Rating4.24.3Sonoff Zigbee Water Leak Sensor
Battery Life2 years5 yearsSonoff Zigbee Water Leak Sensor
IntegrationsApple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterSonoff Zigbee Water Leak Sensor
Warranty1 year1 yearTie
Weather ResistanceIP67IP67Tie
ConnectivityZigbeeZigbeeTie
SensorsWater LeakWater LeakTie
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Low Battery AlertsTie
On Device Alert SoundNONOTie
On Device Alert LightNONOTie

What the differences mean

Battery life

The Sonoff Zigbee Water Leak Sensor is rated for 5 years on a CR2477, the Aqara Water Leak Sensor for 2 years on a CR2032. Spread across a house full of sensors, the Sonoff needs far fewer battery rounds, though its cell is a less common size to buy.

Platforms without a brand hub

The Sonoff Zigbee Water Leak Sensor lists Google Home, SmartThings and Home Assistant as supported, and reaches Apple Home and Matter through a SONOFF bridge. The Aqara Water Leak Sensor works with Home Assistant directly, and reaches Apple Home, SmartThings and Matter only through an Aqara Hub.

Size

The Aqara Water Leak Sensor is 50 x 50 x 15 mm and 18 g, the Sonoff Zigbee Water Leak Sensor 48 x 48 x 21.6 mm and 45 g. The Aqara's thinner body slides under a dishwasher kick plate more easily.

Remote sensing

The Sonoff Zigbee Water Leak Sensor accepts an optional sensing cable, not included, to watch a spot the sensor cannot sit in. The Aqara Water Leak Sensor detects water only where it is placed.

Which one to buy if

What owners say

Owners of both sensors praise fast, reliable detection and use them in automations beyond a phone alert, including cutting the water supply through a shutoff valve. Both groups also point out that there is no siren or light on the sensor, so every alert depends on the hub. Aqara Water Leak Sensor owners single out its discreet size and years on one coin cell, and warn that the Aqara Hub requirement for Apple Home catches buyers out, that some non-Aqara Zigbee coordinators pair it inconsistently and that a few seals failed over time. Sonoff Zigbee Water Leak Sensor owners like pairing in a minute or two with Home Assistant or Hubitat, the tool-free battery cover and the value, and report that SmartThings pairing can need a manual workaround.

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
  • Sonoff Zigbee Water Leak Sensor

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Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor or Sonoff Zigbee Water Leak Sensor?

The Sonoff Zigbee Water Leak Sensor, for its 5 year battery rating, lower price and wider platform support without a brand hub. The Aqara Water Leak Sensor is smaller and suits an Aqara hub setup.

Does the Aqara Water Leak Sensor work with Zigbee2MQTT?

The Aqara Water Leak Sensor is a Zigbee sensor that works with Home Assistant, and many owners pair it through Zigbee2MQTT or ZHA, though some report inconsistent connections on non-Aqara coordinators. The Sonoff Zigbee Water Leak Sensor also pairs with Home Assistant, and owners describe it as quick.

What is the battery life of the Aqara Water Leak Sensor compared with the Sonoff?

The Aqara Water Leak Sensor is rated for about 2 years on a CR2032 coin cell. The Sonoff Zigbee Water Leak Sensor is rated for 5 years on a CR2477.

Do the Aqara Water Leak Sensor and the Sonoff Zigbee Water Leak Sensor sound an alarm?

No. Neither has a siren or light on the sensor. Both send the leak to your hub, which notifies your phone or sounds its own alarm, so the hub has to be online.

Who should buy the Aqara Water Leak Sensor?

Aqara hub owners and Apple Home households using an Aqara Hub, and anyone who needs the thinnest possible sensor under sinks, dishwashers and washing machines.

Who should buy the Sonoff Zigbee Water Leak Sensor?

Home Assistant, Hubitat and Zigbee2MQTT users covering several spots on a budget, who want the longest battery rating and the option of a sensing cable.

Full comparison table

Compare all 34 Water Leak Sensors side by side

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