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Water Leak Sensors · Head to head

Fibaro Flood Sensor (Z-Wave) vs YoLink Water Leak Sensor 4

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Fibaro and YoLink sites.
2026 verdict
Long battery life and a lower price decide it, and the YoLink Water Leak Sensor 4 edges out the Fibaro Flood Sensor (Z-Wave).
YoLink Water Leak Sensor 4
Winner
YoLink Water Leak Sensor 4
$17.09$23.9929% OFF
Buy on Amazon USACheck price
The YoLink Water Leak Sensor 4 is a LoRa sensor that runs about five years on two AAA cells, carries a 105 dB siren that fires even with the hub offline, and reports low temperatures as well as water. The Fibaro Flood Sensor (Z-Wave) answers with the richer sensing set: water, temperature and tilt, plus tamper alerts, an on-device sound and light, and an optional 12/24V DC input that turns its battery into backup. Both need a hub and neither speaks Wi-Fi, Zigbee or Matter. Choose the YoLink Water Leak Sensor 4 for long-range coverage across a large property and a siren you can hear, and the Fibaro Flood Sensor (Z-Wave) for a Z-Wave or Home Assistant setup that wants tilt and tamper monitoring in the same puck.
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FeatureFibaro Flood Sensor (Z-Wave)YoLink Water Leak Sensor 4Winner
Price$61.32$17.09YoLink Water Leak Sensor 4
Rating4.34.7YoLink Water Leak Sensor 4
Warranty1 year2 yearsYoLink Water Leak Sensor 4
Battery Life2 years5 yearsYoLink Water Leak Sensor 4
IntegrationsSamsung SmartThings, Home AssistantHome AssistantFibaro Flood Sensor (Z-Wave)
SensorsWater Leak, Temperature, TiltWater Leak, TemperatureFibaro Flood Sensor (Z-Wave)
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery AlertsFibaro Flood Sensor (Z-Wave)
ConnectivityZ-WaveOtherTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

What the differences mean

Battery

The YoLink Water Leak Sensor 4 is rated around five years on two AAA cells, and the Fibaro Flood Sensor (Z-Wave) around two years on a CR123A. The Fibaro can also take a 12/24V DC feed so the cell becomes backup.

What it senses

The Fibaro Flood Sensor (Z-Wave) tracks water, temperature and tilt in one unit, with tamper alerts on top. The YoLink Water Leak Sensor 4 tracks water and low temperatures but has no tilt or tamper contact.

Alarm

The YoLink Water Leak Sensor 4 has a 105 dB siren and a light that work without the hub. The Fibaro Flood Sensor (Z-Wave) has its own sound and light too, so both can warn locally.

Radios

The Fibaro Flood Sensor (Z-Wave) speaks Z-Wave and nothing else, and the YoLink Water Leak Sensor 4 speaks LoRa to a YoLink hub. Neither has Wi-Fi, Bluetooth, Zigbee, Thread or Matter.

Range and placement

YoLink's LoRa link is designed to reach detached garages and outbuildings, which is why owners deploy many. Z-Wave is a mesh, so the Fibaro Flood Sensor (Z-Wave) depends on the strength of your existing Z-Wave network.

Which one to buy if

Fibaro

Fibaro Flood Sensor (Z-Wave)

Prime exclusive deal
$61.32
Buy on Amazon USACheck price
  • + Integrations: Samsung SmartThings, Home Assistant
  • + Sensors: Water Leak, Temperature, Tilt
  • + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts
  • - Price: $61.32 vs $17.09
  • - Rating: 4.3 vs 4.7

What owners say

YoLink Water Leak Sensor 4 owners tell save stories: several describe it catching a failing water heater or a burst washer hose before major damage, and they single out the 105 dB siren that still fires when the hub is down. Some find the app confusing to configure at first, and they note there is no tamper alert and no cable. Fibaro Flood Sensor (Z-Wave) owners, meanwhile, praise pairing in seconds with SmartThings, Home Assistant, Domoticz or Homey and like the built-in temperature and tilt sensing; they flag that a hub is mandatory, that low-battery alerts are not confirmed, and that a few units arrived with cosmetic scratches or an already-low battery.

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.

  • Fibaro Flood Sensor (Z-Wave)
  • YoLink Water Leak Sensor 4

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Frequently Asked Questions

Which is better overall: the Fibaro Flood Sensor (Z-Wave) or the YoLink Water Leak Sensor 4?

The YoLink Water Leak Sensor 4 wins overall on price, owner rating, warranty and battery life. The Fibaro Flood Sensor (Z-Wave) keeps one real edge: it packs water, temperature and tilt detection into the same puck.

What is the biggest difference between the Fibaro Flood Sensor (Z-Wave) and the YoLink Water Leak Sensor 4?

Radio technology and sensing. The Fibaro Flood Sensor (Z-Wave) relies on a Z-Wave mesh and adds temperature and tilt, while the YoLink Water Leak Sensor 4 uses long-range LoRa to its own hub and reports water plus low temperatures.

Does the YoLink Water Leak Sensor 4 need a hub?

Yes. It connects over YoLink's LoRa radio to a YoLink hub, and the Fibaro Flood Sensor (Z-Wave) likewise needs a Z-Wave controller. Neither works without one.

Does the Fibaro Flood Sensor (Z-Wave) warn about freezing pipes?

Yes, it includes temperature alerts and freeze-temperature alerts along with water and tilt sensing. The YoLink Water Leak Sensor 4 reports low temperatures and freeze alerts but has no tilt sensor.

Who should buy the YoLink Water Leak Sensor 4?

Buyers who want a long-lasting, weather-resistant sensor with a loud independent siren and coverage across a large property or several outbuildings.

Who should buy the Fibaro Flood Sensor (Z-Wave)?

Owners of a Z-Wave or Home Assistant network who want water, temperature and tilt sensing plus tamper alerts in one compact puck.

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