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Water Leak Sensors · Head to head

Aqara Water Leak Sensor vs Fibaro Flood Sensor (Z-Wave)

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Aqara and Fibaro sites.
2026 verdict
A Z-Wave home gets the richer sensor in the Fibaro Flood Sensor (Z-Wave).
Fibaro Flood Sensor (Z-Wave)
Winner
Fibaro Flood Sensor (Z-Wave)
$61.32
Buy on Amazon USACheck price
It is the better reviewed of the pair and reports water, temperature and tilt, turns a moved unit into a tamper alert, and carries both an on-device sound and light that the Aqara Water Leak Sensor lacks. The Aqara Water Leak Sensor is the less expensive option and its IP67 housing shrugs off a flood, while it reaches SmartThings, Apple Home and Matter through an Aqara hub and Home Assistant directly. Both need a hub, the Fibaro Flood Sensor (Z-Wave) a Z-Wave controller and the Aqara a Zigbee one. Pick the Fibaro Flood Sensor (Z-Wave) for temperature, freeze and tamper coverage on a Z-Wave network, and the Aqara Water Leak Sensor for a cheaper Zigbee sensor that can sit in water.
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FeatureAqara Water Leak SensorFibaro Flood Sensor (Z-Wave)Winner
Price$18.99$61.32Aqara Water Leak Sensor
Rating4.24.3Fibaro Flood Sensor (Z-Wave)
IntegrationsApple HomeKit, Samsung SmartThings, Home Assistant, MatterSamsung SmartThings, Home AssistantAqara Water Leak Sensor
SensorsWater LeakWater Leak, Temperature, TiltFibaro Flood Sensor (Z-Wave)
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsFibaro Flood Sensor (Z-Wave)
On Device Alert SoundNOYESFibaro Flood Sensor (Z-Wave)
On Device Alert LightNOYESFibaro Flood Sensor (Z-Wave)
Warranty1 year1 yearTie
Battery Life2 years2 yearsTie
ConnectivityZigbeeZ-WaveTie

What the differences mean

Radio and hub

The Fibaro Flood Sensor (Z-Wave) needs a Z-Wave controller, while the Aqara Water Leak Sensor needs a Zigbee one. Neither works standalone, and which is cheaper to adopt depends entirely on the hub you already own. Home Assistant supports both.

Sensing set

Beyond water, the Fibaro Flood Sensor (Z-Wave) reads temperature, detects tilt and raises tamper alerts if it is moved. The Aqara Water Leak Sensor senses water only, with no temperature, freeze or tamper detection, so the Fibaro covers more ground per puck.

Local warnings

The Fibaro Flood Sensor (Z-Wave) has both an on-device sound and an alert light, plus tamper alerts tied to movement. The Aqara Water Leak Sensor is silent and unlit, so its warning is limited to whatever your hub or automation produces.

Water rating

The Aqara Water Leak Sensor is IP67 rated and can be submerged without harm. The Fibaro Flood Sensor (Z-Wave) has no published weather-resistance rating, so it belongs near a leak rather than in the water itself.

Backup power

The Fibaro Flood Sensor (Z-Wave) accepts an external low-voltage feed and then treats its battery purely as backup, which suits a spot that has power nearby. The Aqara Water Leak Sensor runs only on its coin cell and cannot be wired.

Which one to buy if

Winner
Fibaro

Fibaro Flood Sensor (Z-Wave)

Prime exclusive deal
$61.32
Buy on Amazon USACheck price
  • + Rating: 4.3
  • + Sensors: Water Leak, Temperature, Tilt
  • + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts
  • - Price: $61.32 vs $18.99
  • - Integrations: Samsung SmartThings, Home Assistant vs Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

What owners say

Owners of both sensors describe quick, uninterrupted leak detection and easy pairing into their hubs, and neither group reports trouble with the core job. Aqara Water Leak Sensor owners keep coming back to the tiny size, the multi-year battery on a cheap cell, and the fact that an Aqara hub unlocks Apple Home and Matter, though a few note inconsistent behavior on third-party Zigbee coordinators. Fibaro Flood Sensor (Z-Wave) owners praise the temperature and tilt sensing and the on-device sound and light, and the optional wired supply that keeps the battery as backup, while a few say their platform initially misidentified the sensor and needed manual configuration.

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
  • Fibaro Flood Sensor (Z-Wave)

Loading price history...

Frequently Asked Questions

Which is better, the Aqara Water Leak Sensor or the Fibaro Flood Sensor (Z-Wave)?

The Fibaro Flood Sensor (Z-Wave) if you already run Z-Wave, because it adds temperature, tilt and tamper alerts plus a local sound and light. The Aqara Water Leak Sensor is cheaper and IP67 rated, which makes it the value pick for a Zigbee home that only needs water detection.

What is the biggest difference between the Aqara Water Leak Sensor and the Fibaro Flood Sensor (Z-Wave)?

The protocol and the sensing. The Fibaro Flood Sensor (Z-Wave) uses a Z-Wave hub and reads water, temperature and tilt, while the Aqara Water Leak Sensor uses a Zigbee hub and detects water alone.

Does the Fibaro Flood Sensor (Z-Wave) work without a hub?

No. The Fibaro Flood Sensor (Z-Wave) connects only over Z-Wave and needs a Z-Wave controller or an equivalent Home Assistant setup to function. Home Assistant is the one integration it supports directly.

Can I power the Fibaro Flood Sensor (Z-Wave) from the mains?

Yes. The Fibaro Flood Sensor (Z-Wave) can take an external low-voltage supply, after which its CR123A battery serves as an emergency backup rather than the main power source.

Who should buy the Aqara Water Leak Sensor?

A Zigbee household that wants the lowest cost per sensor and a body rated IP67 to survive a flood, and that is happy to get leak alerts through its hub with no local sound.

Full comparison table

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