Water Leak Sensors · Head to head

Fibaro Flood Sensor (Z-Wave) vs Ring Flood & Freeze Sensor (2nd Gen)

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Fibaro and Ring sites.
2026 verdict
Each one warns about water near a pipe, still the Fibaro Flood Sensor (Z-Wave) is the fuller leak sensor here.
Fibaro Flood Sensor (Z-Wave)
Winner
Fibaro Flood Sensor (Z-Wave)

Last recorded priceOct 7, 2026$61.32

Currently unavailable on Amazon USA
See on Amazon USA
It adds temperature, tilt and tamper alerts, an on-device sound and light, and automations through a Z-Wave hub, with SmartThings and Home Assistant, plus optional wired power beside a CR123A rated for 2 years. The Ring Flood & Freeze Sensor (2nd Gen) is the simpler warning: leak and freeze alerts over Amazon Sidewalk, an IP66 body, and up to 6 years on two AA cells, inside a Ring setup, with Home Assistant listed as well. It has no on-device siren, and automations are not supported. Pick the Fibaro Flood Sensor (Z-Wave) when the hub should do more than notify. Pick the Ring Flood & Freeze Sensor (2nd Gen) when Ring and a long-life freeze warning are enough.
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FeatureFibaro Flood Sensor (Z-Wave)Ring Flood & Freeze Sensor (2nd Gen)Winner
Rating4.33.7Fibaro Flood Sensor (Z-Wave)
Battery Life2 years6 yearsRing Flood & Freeze Sensor (2nd Gen)
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, Freeze Temperature AlertsFibaro Flood Sensor (Z-Wave)
On Device Alert SoundYESNOFibaro Flood Sensor (Z-Wave)
On Device Alert LightYESNOFibaro Flood Sensor (Z-Wave)
Warranty1 year1 yearTie
ConnectivityZ-WaveOtherTie

What the differences mean

What else it senses

The Fibaro Flood Sensor (Z-Wave) reads temperature, tilt and tamper as well as a leak, and it can send freeze alerts. The Ring Flood & Freeze Sensor (2nd Gen) watches for a leak and for low temperatures, with freeze alerts, but not a general temperature alert, tilt or tamper. Freeze coverage is the overlap. The extra motion and tamper checks are Fibaro only.

Siren, light, automations

The Fibaro Flood Sensor (Z-Wave) has an on-device sound and light, and automations are supported, so a Z-Wave hub can do more than ping a phone. The Ring Flood & Freeze Sensor (2nd Gen) has neither a sound nor a light, and automations are not supported. It is a notification sensor, which is what owners say this generation is limited to.

How it stays connected

The Fibaro Flood Sensor (Z-Wave) needs a Z-Wave hub and has no Wi-Fi radio. The Ring Flood & Freeze Sensor (2nd Gen) uses Amazon Sidewalk rather than Wi-Fi, Zigbee or Z-Wave, which is why owners say it can still report when the home network is down. SmartThings is on the Fibaro only. Home Assistant is on both. Alexa, Google Home, Apple Home and Matter are on neither.

Battery and power

The Ring Flood & Freeze Sensor (2nd Gen) is rated for 6 years on two AA cells. The Fibaro Flood Sensor (Z-Wave) is rated for 2 years on a CR123A, with optional wired power so the cell can sit as backup. If you want the longest rated life and no wires, the Ring figure is the one that stands out. Weather resistance on the Fibaro is not documented. The Ring body is IP66.

Which one to buy if

Winner
Fibaro

Fibaro Flood Sensor (Z-Wave)

Prime exclusive deal

Last recorded priceOct 7, 2026$61.32

Currently unavailable on Amazon USA
See on Amazon USA
  • + Rating: 4.3
  • + Integrations: Samsung SmartThings, Home Assistant
  • + Sensors: Water Leak, Temperature, Tilt
  • - Battery Life: 2 years vs 6 years

What owners say

The two owner groups are happy about different jobs. Fibaro Flood Sensor (Z-Wave) owners talk about pairing in seconds once a Z-Wave hub is already there, and they call out temperature, tilt and tamper sensing as extras they use, plus battery life they trust and the option of wired backup power. A few mention a hub that mislabels the device and the lack of a probe cable in the box. Ring Flood & Freeze Sensor (2nd Gen) owners praise a Ring app setup that finishes in minutes and Sidewalk alerts that still arrived when home Wi-Fi was down, and they like setting the IP66 body on a damp basement floor. What they complain about is the missing local siren and the fact this generation only notifies, with no shutoff, plus a unit that can drop offline with no way to reset it on the device.

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)
  • Ring Flood & Freeze Sensor (2nd Gen)

Loading price history...

Frequently Asked Questions

Which is better overall: Fibaro Flood Sensor (Z-Wave) or Ring Flood & Freeze Sensor (2nd Gen)?

The Fibaro Flood Sensor (Z-Wave) for a hub that should sense temperature, tilt and tamper and sound a local alarm. The Ring Flood & Freeze Sensor (2nd Gen) is the simpler Sidewalk leak and freeze warning, rated for 6 years, with no siren and no automations.

What is the biggest difference between the Fibaro Flood Sensor (Z-Wave) and the Ring Flood & Freeze Sensor (2nd Gen)?

The Fibaro is a Z-Wave sensor with sound, light, temperature, tilt, tamper and automations. The Ring Flood & Freeze Sensor (2nd Gen) is an Amazon Sidewalk leak and freeze sensor with an IP66 body and a 6-year AA rating, and it does not automate or sound a local alarm.

Does the Ring Flood & Freeze Sensor (2nd Gen) work if Wi-Fi drops?

Its connection is Amazon Sidewalk, not Wi-Fi, and owners describe alerts that still arrived when home Wi-Fi was down. The Fibaro Flood Sensor (Z-Wave) depends on a Z-Wave hub instead, so its path is the hub, not Sidewalk.

Do either the Fibaro Flood Sensor (Z-Wave) or the Ring Flood & Freeze Sensor (2nd Gen) support Alexa or Apple Home?

Neither lists Alexa, Google Home, Apple Home or Matter as supported. The Fibaro Flood Sensor (Z-Wave) supports SmartThings and Home Assistant. The Ring Flood & Freeze Sensor (2nd Gen) supports Home Assistant and is built around the Ring app.

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

Buy it when a Z-Wave or Home Assistant setup should catch leaks, freezes, tilt and tamper, and you want a sound and light on the device. It is not a Sidewalk or Ring sensor.

Who should buy the Ring Flood & Freeze Sensor (2nd Gen)?

Buy the Ring Flood & Freeze Sensor (2nd Gen) for a Ring household that wants leak and freeze notices, an IP66 body and a 6-year battery rating. Do not buy it for a local siren, a shutoff routine or SmartThings.

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