Winner
Updated September 2026
Data from Amazon and official Fibaro and Kidde sites.
2026 verdict
Tilt, tamper and an alert light make the Fibaro Flood Sensor (HomeKit) the more complete water leak sensor against the Kidde WiFi Water Leak & Freeze Detector.
Fibaro wins on owner reviews, a broader sensor set (water, temperature and tilt), and an on-device alert light, pairing native Apple Home over Bluetooth with tamper alerts, optional wired backup, and a 2-year CR123A battery. The Kidde WiFi Water Leak & Freeze Detector stays cheaper and reaches Alexa, Google Home and Home Assistant over hub-free Wi-Fi, which Fibaro does not. Choose the Fibaro Flood Sensor (HomeKit) for Apple Home leak, freeze and tamper coverage in a smaller home; pick the Kidde WiFi Water Leak & Freeze Detector when you want Alexa or Google Home without a HomeKit hub nearby.
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| Feature | Fibaro Flood Sensor (HomeKit) | Kidde WiFi Water Leak & Freeze Detector | Winner |
|---|---|---|---|
| Price | $43.28 | $17.14 | Kidde WiFi Water Leak & Freeze Detector |
| Rating | 4.1 | 3.9 | Fibaro Flood Sensor (HomeKit) |
| Integrations | Apple HomeKit, Home Assistant | Google Home, Alexa, Home Assistant | Kidde WiFi Water Leak & Freeze Detector |
| Sensors | Water Leak, Temperature, Tilt | Water Leak, Temperature | Fibaro Flood Sensor (HomeKit) |
| On Device Alert Light | YES | NO | Fibaro Flood Sensor (HomeKit) |
| Warranty | 1 year | 1 year | Tie |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Bluetooth | 2.4 GHz WiFi | Tie |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Low Battery Alerts | Tie |
| On Device Alert Sound | YES | YES | Tie |
Winner
- + Rating: 4.1
- + Sensors: Water Leak, Temperature, Tilt
- + On Device Alert Light: YES
- - Price: $43.28 vs $17.14
- - Integrations: Apple HomeKit, Home Assistant vs Google Home, Alexa, Home Assistant
51% OFF
$17.14
$34.97
- + Price: $17.14
- + Integrations: Google Home, Alexa, Home Assistant
- - Rating: 3.9 vs 4.1
- - Sensors: Water Leak, Temperature vs Water Leak, Temperature, Tilt
Frequently Asked Questions
Which is better overall: the Fibaro Flood Sensor (HomeKit) or the Kidde WiFi Water Leak & Freeze Detector?
The Fibaro Flood Sensor (HomeKit) wins overall on reviews, sensing breadth, and an alert light, with tilt, tamper, and native Apple Home. The Kidde WiFi Water Leak & Freeze Detector is the cheaper hub-free Wi-Fi alternative for Alexa and Google Home.
What is the biggest difference between the Fibaro Flood Sensor (HomeKit) and the Kidde WiFi Water Leak & Freeze Detector?
Apple Home Bluetooth versus standalone Wi-Fi. The Fibaro Flood Sensor (HomeKit) pairs through an Apple TV, HomePod or iPad, adds tilt and tamper, and lights as well as sounds on the device. The Kidde WiFi Water Leak & Freeze Detector joins 2.4 GHz Wi-Fi on its own and talks to Alexa and Google Home instead of HomeKit.
Do both sensors warn about freezing pipes?
Yes. Both the Fibaro Flood Sensor (HomeKit) and the Kidde WiFi Water Leak & Freeze Detector include temperature sensing and freeze-temperature alerts alongside leak alerts.
Does the Fibaro Flood Sensor (HomeKit) work with Alexa or Google Home?
No. It is native Apple HomeKit plus Home Assistant, with no Alexa, Google Home, SmartThings or Matter. The Kidde WiFi Water Leak & Freeze Detector supports Alexa, Google Home and Home Assistant, not HomeKit.
Who should buy the Fibaro Flood Sensor (HomeKit)?
Apple Home households that want a compact leak, freeze, tilt and tamper puck with on-device sound and light, and who have a HomeKit hub in Bluetooth range.
Who should buy the Kidde WiFi Water Leak & Freeze Detector?
Buyers who want the cheaper hub-free Wi-Fi puck with freeze alerts and Alexa or Google Home, and who do not need HomeKit, tilt or tamper.
Full comparison table
Compare all 33 Water Leak Sensors side by side
You are looking at two of them. The full table lines up all Water Leak Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 33 Water Leak Sensors
- 36 specs compared
- 33 filters
YoLinkWater Leak Sensor 4
17% OFF$23.99$19.99
YoLinkWater Leak Sensor 1
$16.99
X-SenseWi-Fi Water Leak Detector
25% OFF$15.99$11.99
TP-LinkTapo T300
$19.99
SwitchBotWater Leak Detector
$16.99
AeotecWater Leak Sensor
$39.99
EufyWater and Freeze Sensor
$34.99
EveWater Guard
$109.95
AqaraWater Leak Sensor T1
C$36.99
ShellyFlood S Gen4
$27.99
GoveeWater Leak Detector 2
14% OFF$69.99$59.99
GoveeWater Sensor Alarm
$15.99
SwitchBotWater Leak Detector (Sensor Cable Edition)
10% OFF$19.99$17.99
FibaroFlood Sensor (Z-Wave)
$62.04
SonoffZigbee Water Leak Sensor
$14.99
AqaraWater Leak Sensor
$18.99
ShellyFlood Gen4
$39.99
EufyFlood & Freeze Sensor E20
$39.99
HeimanSmart Water Leakage Sensor
20% OFF$19.99$15.99- Fibaro
Flood Sensor (HomeKit)
$43.28
Door & Window SensorsFibaroDoor / Window Sensor 2
3.6(58)$50.45
Door & Window SensorsFibaroDoor / Window Sensor
3.2(58)$48.53
HubsFibaroHome Center Lite
3.4(39)$149.00
Motion SensorsFibaroFGBHMS-001
3.5(192)$56.10
PlugsFibaroWall Plug (EU)
4.5(526)
PlugsFibaroWall Plug with USB (US)
4.0(44)$51.28- Water Leak SensorsFibaro
Flood Sensor (Z-Wave)
4.3(233)$62.04 - Water Leak SensorsFibaro
Flood Sensor (HomeKit)
4.1(359)$43.28
Smoke & CO DetectorsKiddeSmart Smoke Alarm (P4010ACS-WF)
3.2(317)$40.79
Smoke & CO DetectorsKiddeSmart Smoke & CO Detector with Ring
4.3(434)$69.97
Smoke & CO DetectorsKiddeSmart Smoke + Indoor Air Quality Alarm
3.3(198)$104.86
Water Leak SensorsKiddeWiFi Water Leak & Freeze Detector
3.9(738)51% OFF$34.97$17.14