Updated November 2026
Data from the official Flume and X-Sense sites.
2026 verdict
Usage tracking and a loud floor alarm are not the same tool, yet the X-Sense Wi-Fi Water Leak Detector is the one that wins as a leak alarm.
It uses an SBS50 base station, a local sound, an IP66 body, up to 3 years on two AAA cells, a 5-year warranty, low-battery alerts and Home Assistant. The Flume 2 Smart Water Monitor reads the meter over Wi-Fi, works with Google Home and Home Assistant, and has no siren. Google Home is not supported on the X-Sense Wi-Fi Water Leak Detector. Choose it for a sump or a heater. Choose the Flume 2 Smart Water Monitor for usage and hidden leaks.
Works with
Connectivity
- Wi-Fi 2.4 GHz
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Winner
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$11.39
$15.99
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| Feature | Flume 2 Smart Water Monitor | X-Sense Wi-Fi Water Leak Detector | Winner |
|---|---|---|---|
| Rating | 4.0 | 4.5 | X-Sense Wi-Fi Water Leak Detector |
| Connectivity | 2.4 GHz WiFi, Other | Other | Flume 2 Smart Water Monitor |
| Integrations | Google Home, Home Assistant | Home Assistant | Flume 2 Smart Water Monitor |
| On Device Alert Sound | NO | YES | X-Sense Wi-Fi Water Leak Detector |
| Weather Resistance | YES | IP66 | Tie |
| Sensors | Water Leak | Water Leak | Tie |
| Alerts | Water Leak Alerts, Low Battery Alerts | Water Leak Alerts, Low Battery Alerts | Tie |
| On Device Alert Light | NO | NO | Tie |
What the differences mean
Siren versus meter data
The X-Sense Wi-Fi Water Leak Detector has an on-device sound and no light, and automations are not supported. It tells you a spot is wet. The Flume 2 Smart Water Monitor has no sound and no light, and it tells you the meter is moving. A sump that overflows onto the floor is an X-Sense event. A toilet flapper that never overflows is a Flume event. Google Home can hear the Flume. It cannot hear the X-Sense.
Does it work with Google Home
Google Home is supported on the Flume 2 Smart Water Monitor and not on the X-Sense Wi-Fi Water Leak Detector. Home Assistant is supported on both. Alexa, Apple Home, SmartThings and Matter are not supported on either. If the question is only Google Home, Flume is the yes and X-Sense is the no, even though X-Sense is the leak-alarm winner on the rest of the sheet.
Radio and what has to stay plugged in
The X-Sense Wi-Fi Water Leak Detector does not list 2.4 GHz Wi-Fi on the sensor. It requires an SBS50 base station over Sub-1G. The Flume 2 Smart Water Monitor lists 2.4 GHz Wi-Fi plus another radio to the bridge, and that bridge needs a mains outlet near the meter. Both designs have a powered box indoors. Only Flume's sensor is out at the meter. Only X-Sense's sensor is on the floor.
Warranty and the numbers you can cite
The X-Sense Wi-Fi Water Leak Detector has a 5-year warranty, a 3-year AAA rating, low-battery alerts, and an IP66 body listed at 100 g. The Flume 2 Smart Water Monitor leaves warranty, battery life, dimensions and weight undocumented, so those rows are not a loss for Flume, just unknown. Weather resistance is marked yes. The published X-Sense numbers are why a buyer who wants paperwork, not only a concept, can compare it and cannot finish the same comparison for Flume.
Which one to buy if
- a sump, heater or washer should sound an alarm in the room
The X-Sense Wi-Fi Water Leak Detector has a local sound, an IP66 body and a 5-year warranty, through its SBS50 base station.
- you need whole-home use, including leaks that never pool
The Flume 2 Smart Water Monitor reads the meter over Wi-Fi. The X-Sense only knows that water touched the probes.
- you need Google Home as part of the alert
Google Home is supported on the Flume 2 Smart Water Monitor and not on the X-Sense Wi-Fi Water Leak Detector.
- you only need Home Assistant and want the longer warranty
Both support Home Assistant. Only the X-Sense publishes a 5-year warranty and a 3-year battery rating.
- + Connectivity: 2.4 GHz WiFi, Other
- + Integrations: Google Home, Home Assistant
- - Rating: 4.0 vs 4.5
- - On Device Alert Sound: NO vs YES
Winner
29% OFF
$11.39
$15.99
- + Rating: 4.5
- + On Device Alert Sound: YES
- - Connectivity: Other vs 2.4 GHz WiFi, Other
- - Integrations: Home Assistant vs Google Home, Home Assistant
What owners say
Again the owners are solving two problems. Flume 2 Smart Water Monitor owners praise non-invasive meter installs and alerts for flow that never reached the floor, and they like reviewing any past minute of use. The gripes are the proprietary battery and softer per-fixture detail, with no sound in the house. X-Sense Wi-Fi Water Leak Detector owners praise probes on the top and bottom, a loud alarm through the base station, and leaks at sump pumps and heaters that were caught in time. They mention the separate base station and a tiny setup sheet, and they are not describing Alexa or Google routines, because those links are not on the product.
Frequently Asked Questions
Does it work with Google Home, the Flume 2 Smart Water Monitor or the X-Sense Wi-Fi Water Leak Detector?
The Flume 2 Smart Water Monitor supports Google Home. The X-Sense Wi-Fi Water Leak Detector does not. Both support Home Assistant. Neither supports Alexa, Apple Home, SmartThings or Matter.
Which is better overall: Flume 2 Smart Water Monitor or X-Sense Wi-Fi Water Leak Detector?
As a leak alarm, the X-Sense Wi-Fi Water Leak Detector, with a local sound, an IP66 body, a 3-year battery rating and a 5-year warranty. The Flume 2 Smart Water Monitor is the better buy when the job is meter flow and Google Home, not a puddle.
What is the biggest difference between the Flume 2 Smart Water Monitor and the X-Sense Wi-Fi Water Leak Detector?
Flume monitors the water meter and has no siren. X-Sense detects water on a floor sensor, sounds an alarm, and needs an SBS50 base station. X-Sense does not do Google Home. Flume does.
Is the X-Sense Wi-Fi Water Leak Detector a direct Wi-Fi sensor?
The connectivity sheet does not mark 2.4 GHz Wi-Fi as supported. It requires an SBS50 base station on Sub-1G. The Flume 2 Smart Water Monitor is the one that lists 2.4 GHz Wi-Fi, on the bridge side of a meter strap.
Who should buy the Flume 2 Smart Water Monitor?
Buy the Flume 2 Smart Water Monitor for whole-home usage and hidden leaks, with Google Home and Home Assistant. Do not buy it to scream next to a sump pump.
Who should buy the X-Sense Wi-Fi Water Leak Detector?
Buy the X-Sense Wi-Fi Water Leak Detector for a loud leak alarm, a 5-year warranty and Home Assistant. Skip it for Google Home, automations, or temperature sensing, which it does not have.
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