Fibaro Flood Sensor (HomeKit) vs Flume 2 Smart Water Monitor

The Fibaro Flood Sensor (HomeKit) wins on price, owner rating, sensing breadth, and having a loud on-device alarm and light. The Flume 2 Smart Water Monitor answers back with wider connectivity and more integrations, since it works with Alexa and Google Home over Wi-Fi rather than requiring an Apple HomeKit hub.

Where the leak has to happen to get caught. The Fibaro Flood Sensor (HomeKit) only detects water that reaches its own contacts, so placement matters. The Flume 2 Smart Water Monitor reads the whole house's water meter, catching a leak anywhere on the property, including ones that never touch a floor.

Only the Fibaro Flood Sensor (HomeKit) does, with an on-device alert sound and light in addition to HomeKit push notifications. The Flume 2 Smart Water Monitor has no siren or light of its own, so it depends entirely on app alerts.

The Fibaro Flood Sensor (HomeKit) does, pairing directly through an Apple TV, HomePod or iPad hub. The Flume 2 Smart Water Monitor has no Apple HomeKit support, but it does work with Amazon Alexa and Google Home, which the Fibaro does not.

Apple Home households that want a small, well-rated sensor watching one fixture, like a water heater, washing machine or sump pump, with a genuinely loud local alarm and freeze-alert bonus.

Homeowners who want to catch a leak anywhere in the house or yard without touching any plumbing, especially those with irrigation or a history of unexplained water bills, and who are happy relying on Alexa, Google Home or app alerts instead of a local siren.