Winner
Updated September 2026
Data from Amazon and official Fibaro site.
2026 verdict
Same puck, different radio. The Fibaro Flood Sensor (HomeKit) takes it as the lower priced of these two flood sensors, and the one to buy for Apple Home.
Both share the same 71 mm body, CR123A battery rated for 2 years with optional 12/24V DC power, water, temperature and tilt sensing, freeze and tamper alerts, and an alarm with a light on the sensor. The Fibaro Flood Sensor (HomeKit) connects over Bluetooth to an Apple TV, HomePod or iPad, while the Fibaro Flood Sensor (Z-Wave) joins a Z-Wave hub and works with SmartThings; both work with Home Assistant. The Z-Wave model is the better rated of the two, and its mesh network avoids the Bluetooth range problems HomeKit owners report in larger homes. Buy the Fibaro Flood Sensor (HomeKit) for Apple Home, and the Fibaro Flood Sensor (Z-Wave) if you run a Z-Wave hub or SmartThings.
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| Feature | Fibaro Flood Sensor (HomeKit) | Fibaro Flood Sensor (Z-Wave) | Winner |
|---|---|---|---|
| Price | $43.28 | $61.36 | Fibaro Flood Sensor (HomeKit) |
| Rating | 4.1 | 4.3 | Fibaro Flood Sensor (Z-Wave) |
| Warranty | 1 year | 1 year | Tie |
| Battery Life | 2 years | 2 years | Tie |
| Connectivity | Bluetooth | Z-Wave | Tie |
| Integrations | Apple HomeKit, Home Assistant | Samsung SmartThings, Home Assistant | Tie |
| Sensors | Water Leak, Temperature, Tilt | Water Leak, Temperature, Tilt | Tie |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts | Tie |
| On Device Alert Sound | YES | YES | Tie |
| On Device Alert Light | YES | YES | Tie |
What the differences mean
Radio
This is the only real difference. The Fibaro Flood Sensor (HomeKit) uses Bluetooth and needs an Apple home hub within reach; the Fibaro Flood Sensor (Z-Wave) needs a Z-Wave hub and becomes part of a mesh, which carries its signal further through a large house.
Platforms
Both work with Home Assistant. The HomeKit version adds Apple Home; the Z-Wave version adds SmartThings. Neither works with Alexa, Google Home or Matter.
Hardware
Same 71 x 71 x 29.3 mm body and 59g weight, same sensors, same alarm and light, same CR123A with optional 12/24V DC power. Pick by the hub you have, not by the device.
Which one to buy if
- your home runs on Apple Home
The Fibaro Flood Sensor (HomeKit) pairs straight into the Home app over Bluetooth.
- you run a Z-Wave hub or SmartThings
The Fibaro Flood Sensor (Z-Wave) joins your existing mesh and works with SmartThings.
- the sensor sits far from your hub, behind concrete walls
Z-Wave mesh routes around distance, while HomeKit owners in large homes needed extra Apple TVs.
- you use Home Assistant and have no preference
Both work with Home Assistant, and the HomeKit version is the lower priced of the two.
Winner
- + Price: $43.28
- - Rating: 4.1 vs 4.3
- + Rating: 4.3
- - Price: $61.36 vs $43.28
What owners say
Owners of both versions describe the same hardware strengths: a compact puck that is easy to hide, temperature readings that double as a freeze warning, tilt and tamper sensing as an extra layer, and batteries that last, with the optional wired backup power appreciated. Where they differ is the radio. Fibaro Flood Sensor (HomeKit) owners report leaks caught early with fast Home app notifications, but in larger homes or behind concrete some needed another Apple TV to reach it, a few had it drop offline, and some wanted a way to silence the onboard alarm remotely. Fibaro Flood Sensor (Z-Wave) owners describe pairing in seconds on a Z-Wave hub, while a few found their platform misidentified it and needed extra configuration, and a small number received units with scratches or low batteries.
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)
- Fibaro Flood Sensor (Z-Wave)
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Frequently Asked Questions
Which is better overall: Fibaro Flood Sensor (HomeKit) or Fibaro Flood Sensor (Z-Wave)?
They are the same sensor with different radios. The Fibaro Flood Sensor (HomeKit) is the lower priced and the one for Apple Home; the Fibaro Flood Sensor (Z-Wave) is the better rated and the one for Z-Wave hubs and SmartThings.
Does the Fibaro Flood Sensor HomeKit use Bluetooth?
Yes. The Fibaro Flood Sensor (HomeKit) connects over Bluetooth to an Apple home hub such as an Apple TV, HomePod or iPad, with no Fibaro bridge. The Fibaro Flood Sensor (Z-Wave) uses Z-Wave instead.
Can I use the Fibaro Flood Sensor (Z-Wave) with Apple Home?
Not directly. The Fibaro Flood Sensor (Z-Wave) works with SmartThings and Home Assistant through a Z-Wave hub. For Apple Home, the Fibaro Flood Sensor (HomeKit) is the version to buy.
Do both Fibaro Flood Sensors detect temperature and tilt?
Yes. The Fibaro Flood Sensor (HomeKit) and the Fibaro Flood Sensor (Z-Wave) both measure temperature, send freeze and temperature alerts, detect tilt with tamper alerts and sound an alarm with a light.
Who should buy the Fibaro Flood Sensor (HomeKit)?
Apple Home users with an Apple TV, HomePod or iPad reasonably close to where the sensor goes.
Who should buy the Fibaro Flood Sensor (Z-Wave)?
Anyone running a Z-Wave hub, SmartThings or Home Assistant with a Z-Wave stick, especially in a larger home where a mesh network helps with range.
Full comparison table
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