Water Leak Sensors · Head to head

Eve Water Guard vs Flume 2 Smart Water Monitor

Full Smart Water Leak Sensors comparison in 2026

Updated September 2026
Data from Amazon and official Eve and Flume sites.
2026 verdict
Sensing cable or meter clamp: the Eve Water Guard is the stronger water leak sensor pick here, ahead of the Flume 2 Smart Water Monitor on price, owner rating and a loud 100 dB on-device siren with a light, something the Flume does not have. It is a closer match on coverage than most point sensors get, since the Eve Water Guard ships with a 6.5 ft sensing cable extendable up to 490 ft, letting it watch a whole kitchen or laundry run rather than one exact spot, though the Flume 2 Smart Water Monitor still covers more ground overall by reading the entire house's water meter. The Flume answers back on integrations and alert variety, working with Amazon Alexa and Google Home alongside Home Assistant and adding a low-battery alert, while the Eve Water Guard is built around Apple HomeKit and Thread (with Matter support planned) and needs constant wall power rather than batteries. Buy the Eve Water Guard for a wired, HomeKit-native sensor that tracks a long appliance run with a genuinely loud alarm; buy the Flume 2 Smart Water Monitor if you want Alexa or Google Home support and whole-property coverage, including leaks that never touch a floor at all.
Price alerts

Water Leak Sensor prices change while you decide

We check the price of every Water Leak Sensor in the catalog daily and email you the drops, whichever one you pick.

Your subscription could not be saved. Please try again.
Your subscription has been successful.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

FeatureEve Water GuardFlume 2 Smart Water MonitorWinner
Price$109.95$199.00Eve Water Guard
Rating4.54.0Eve Water Guard
IntegrationsApple HomeKit, Home AssistantGoogle Home, Alexa, Home AssistantFlume 2 Smart Water Monitor
AlertsWater Leak AlertsWater Leak Alerts, Low Battery AlertsFlume 2 Smart Water Monitor
On Device Alert SoundYESNOEve Water Guard
On Device Alert LightYESNOEve Water Guard
Weather ResistanceYESYESTie
ConnectivityBluetooth, Thread Protocol2.4 GHz WiFi, OtherTie
SensorsWater LeakWater LeakTie
Winner
  • + Price: $109.95
  • + Rating: 4.5
  • + On Device Alert Sound: YES
  • - Integrations: Apple HomeKit, Home Assistant vs Google Home, Alexa, Home Assistant
  • - Alerts: Water Leak Alerts vs Water Leak Alerts, Low Battery Alerts

Frequently Asked Questions

Which is better overall: Eve Water Guard or Flume 2 Smart Water Monitor?

The Eve Water Guard wins on price, owner rating, and having a loud on-device siren and light. The Flume 2 Smart Water Monitor answers with wider integrations, adding Alexa and Google Home support alongside Home Assistant, plus a low-battery alert the Eve Water Guard lacks.

What is the biggest difference between the Eve Water Guard and the Flume 2 Smart Water Monitor?

How each one covers ground. The Eve Water Guard uses an extendable sensing cable, up to 490 ft, to watch a long run behind appliances instead of a single point. The Flume 2 Smart Water Monitor reads your whole-house water meter, catching a leak anywhere on the property, even ones that never reach a floor.

Does either sensor run on batteries?

No, neither does in the way a typical puck sensor does. The Eve Water Guard is wired for constant wall power. The Flume 2 Smart Water Monitor's meter sensor runs on a battery pack, but the indoor bridge that relays its readings plugs into mains power.

Which one works with Apple HomeKit?

The Eve Water Guard does, natively, along with Thread connectivity (a Thread Border Router is required) and Home Assistant. The Flume 2 Smart Water Monitor has no Apple HomeKit support, but works with Amazon Alexa and Google Home instead.

Who should buy the Eve Water Guard?

Apple HomeKit and Thread households near a wall outlet who want one sensor covering a long appliance run, like a kitchen or laundry area, with a loud, reliable local alarm.

Who should buy the Flume 2 Smart Water Monitor?

Buyers who want to catch a leak anywhere on the property, not just along one wired run, and who want that protection tied into Alexa or Google Home rather than Apple HomeKit.

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
Open the full comparison
More Water Leak Sensors

Top Water Leak Sensors to compare next

33 water leak sensors from 22 brands compared: Aqara, Aeotec, Shelly, Govee and more. Probe types, battery life, alarm volume and protocols.

All Water Leak Sensors
Eve

More Eve products

A sharper look at other Eve products worth comparing.

Explore Eve