Updated July 2026
Data from Amazon and official Arlo and Fibaro sites.
2026 verdict
The Fibaro Flood Sensor (HomeKit) takes this water leak sensor comparison over the Arlo All-in-One Sensor by supporting more alert categories and adding both an on-device alert sound and light, features the Arlo unit skips entirely. The Arlo All-in-One Sensor answers with a lower price and a higher owner rating, plus its own broader built-in sensing that covers water, temperature, and tilt in one device. The Fibaro Flood Sensor (HomeKit) also senses temperature and tilt, pairing them with tamper alerts and native Apple HomeKit support via Bluetooth, whereas the Arlo sensor works through Google Home and Alexa instead. Buyers who want native HomeKit connectivity and a genuinely loud local alarm should pick the Fibaro Flood Sensor (HomeKit), while those chasing a cheaper, higher-rated sensor with Google Home or Alexa support should choose the Arlo All-in-One Sensor.
| Feature | Arlo All-in-One Sensor | Fibaro Flood Sensor (HomeKit) | Winner |
|---|---|---|---|
| Price | $29.59 | $43.28 | Arlo All-in-One Sensor |
| Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts | Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts | Fibaro Flood Sensor (HomeKit) |
| On Device Alert Sound | NO | YES | Fibaro Flood Sensor (HomeKit) |
| On Device Alert Light | NO | YES | Fibaro Flood Sensor (HomeKit) |
| Rating | 4.1 | 4.1 | Tie |
| Warranty | 1 year | 1 year | Tie |
| Weather Resistance | NO | NO | Tie |
| Connectivity | Other | Bluetooth | Tie |
| Integrations | Google Home, Alexa | Apple HomeKit, Home Assistant | Tie |
| Sensors | Water Leak, Temperature, Tilt | Water Leak, Temperature, Tilt | Tie |
$29.59
- + Price: $29.59
- - Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts vs Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts
- - On Device Alert Sound: NO vs YES
Winner
$43.28
- + Alerts: Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts, Tamper Alerts
- + On Device Alert Sound: YES
- + On Device Alert Light: YES
- - Price: $43.28 vs $29.59
Frequently Asked Questions
Which is better overall, the Arlo All-in-One Sensor or the Fibaro Flood Sensor (HomeKit)?
The Fibaro Flood Sensor (HomeKit) wins overall, offering more alert types plus a built-in alarm sound and light. The Arlo All-in-One Sensor is the more affordable, higher-rated option.
What is the biggest difference between the Arlo All-in-One Sensor and the Fibaro Flood Sensor (HomeKit)?
Smart home ecosystem and alerting. The Fibaro Flood Sensor (HomeKit) connects over Bluetooth to Apple HomeKit and includes a local alarm plus tamper alerts, while the Arlo All-in-One Sensor works with Google Home and Alexa and has no on-device alert sound or light.
Which sensor has the higher owner rating?
The Arlo All-in-One Sensor does, though the Fibaro Flood Sensor (HomeKit) wins on alert variety and its built-in alarm.
Does either sensor detect tampering?
Yes, the Fibaro Flood Sensor (HomeKit) supports tamper alerts through its tilt sensor. The Arlo All-in-One Sensor has no confirmed tamper-alert support.
Who should buy the Fibaro Flood Sensor (HomeKit)?
Apple HomeKit households that want native Bluetooth connectivity, a loud local alarm, and tamper detection.
Who should buy the Arlo All-in-One Sensor?
Buyers who want the cheaper, higher-rated sensor and use Google Home or Alexa rather than Apple HomeKit.
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