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Water Leak Sensors · Head to head

Fibaro Flood Sensor (HomeKit) 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
Left by a garage water heater, the Fibaro Flood Sensor (HomeKit) is the water leak sensor to choose when the alert has to make noise in the garage, not only on a phone.
Fibaro Flood Sensor (HomeKit)
Winner
Fibaro Flood Sensor (HomeKit)
$43.28
Buy on Amazon USACheck price
It brings Apple Home, tilt and tamper, temperature alerts, and a sound and light on the puck, and it is the better reviewed of the two. The Ring Flood & Freeze Sensor (2nd Gen) answers with Amazon Sidewalk, an IP66 body, and a 6-year battery on two AA cells, at the lower price. It has no siren. Pick the Fibaro for Home app and a local alarm, and the Ring when Sidewalk and a long AA life matter more.
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FeatureFibaro Flood Sensor (HomeKit)Ring Flood & Freeze Sensor (2nd Gen)Winner
Price$43.28$24.99Ring Flood & Freeze Sensor (2nd Gen)
Rating4.13.7Fibaro Flood Sensor (HomeKit)
Battery Life2 years6 yearsRing Flood & Freeze Sensor (2nd Gen)
IntegrationsApple HomeKit, Home AssistantHome AssistantFibaro Flood Sensor (HomeKit)
SensorsWater Leak, Temperature, TiltWater Leak, TemperatureFibaro Flood Sensor (HomeKit)
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper AlertsWater Leak Alerts, Freeze Temperature AlertsFibaro Flood Sensor (HomeKit)
On Device Alert SoundYESNOFibaro Flood Sensor (HomeKit)
On Device Alert LightYESNOFibaro Flood Sensor (HomeKit)
Warranty1 year1 yearTie
ConnectivityBluetoothOtherTie

What the differences mean

Noise in the garage

The Fibaro Flood Sensor (HomeKit) has an on-device sound and light. The Ring Flood & Freeze Sensor (2nd Gen) has neither. A garage water heater can leak for a long time before anyone looks at a phone. The Fibaro makes the noise next to the tank. The Ring depends on the notification, which its owners say still works over Sidewalk if the Wi-Fi drops.

Apple Home or Sidewalk

The Fibaro reaches Apple Home over Bluetooth and needs a Home hub in range. It also lists Home Assistant. It does not list Google Home, SmartThings or Matter. The Ring Flood & Freeze Sensor (2nd Gen) uses Amazon Sidewalk, not Wi-Fi on the sensor, and lists Home Assistant. It does not list Apple Home, Google Home, SmartThings or Matter. Automations are listed on the Fibaro and marked no on the Ring.

What freeze means here

Both can warn about cold. The Fibaro has a full temperature sensor plus temperature alerts and freeze alerts, and it adds tilt and tamper. The Ring's temperature sensor is listed as low temperatures, with freeze alerts and without general temperature alerts. It will tell you about a freeze risk. It is not a room thermometer, and it has no tamper alert.

Battery and housing

The Ring Flood & Freeze Sensor (2nd Gen) is rated for 6 years on two AA cells and IP66, which suits a garage or a crawlspace. The Fibaro is rated for 2 years on a CR123A, can take optional VDC power, and its weather rating is not documented. The Ring is the more affordable of the pair and the one you will change batteries on less often. It also has no sensor cable. Neither does the Fibaro.

Which one to buy if

What owners say

Owners of the Fibaro Flood Sensor (HomeKit) describe a real leak, a failed sump or a slow drip, caught by both the Home notification and the on-device sound and light. They like the temperature reading for freeze automations and the tilt sensor if the puck is moved. They complain about Bluetooth range and an alarm they cannot shut off from the phone. Owners of the Ring Flood & Freeze Sensor (2nd Gen) describe setup in minutes in the Ring app and Sidewalk alerts that still arrived when Wi-Fi was down in a storm. They complain that this generation only notifies: there is no on-device sound, and it does not close a shutoff valve the way the earlier Ring flood sensor could.

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

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Frequently Asked Questions

Which is better by a water heater: the Fibaro Flood Sensor (HomeKit) or the Ring Flood & Freeze Sensor (2nd Gen)?

The Fibaro Flood Sensor (HomeKit) if you want a siren, Apple Home, and tilt plus full temperature alerts. It is the better reviewed of the two. The Ring Flood & Freeze Sensor (2nd Gen) if you want Sidewalk, IP66 and a 6-year AA battery at the lower price, and a phone notification is enough.

Does the Fibaro Flood Sensor (HomeKit) work with Apple Home?

Yes. Apple Home is listed, over Bluetooth, so a Home hub has to be in range. The Ring Flood & Freeze Sensor (2nd Gen) does not list Apple Home. It uses Amazon Sidewalk and lists Home Assistant.

Does the Ring Flood & Freeze Sensor (2nd Gen) shut the water off?

No. Its product summary says this generation sends notifications only and does not drive a shutoff valve the way the earlier Ring flood sensor could. Automations are marked no. The Fibaro Flood Sensor (HomeKit) lists automations, but it also does not include a valve.

Which one lasts longer on a battery?

The Ring Flood & Freeze Sensor (2nd Gen), rated for 6 years on two AA cells. The Fibaro Flood Sensor (HomeKit) is rated for 2 years on a CR123A, with optional VDC power if you would rather not rely on the cell.

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

Ring households that want a sealed IP66 sensor with freeze alerts and a very long AA life in a garage, basement or crawlspace, and that do not need a local siren or Apple Home.

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