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Water Leak Sensors · Head to head

Eve Water Guard vs SwitchBot Water Leak Detector

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Eve and SwitchBot sites.
2026 verdict
Cable run or single spot? The SwitchBot Water Leak Detector wins for most homes, reaching Google Home, Apple Home, SmartThings and Home Assistant over its own Wi-Fi, on batteries and at a lower price.
SwitchBot Water Leak Detector
Winner
SwitchBot Water Leak Detector
$16.99
Buy on Amazon USACheck price
It is sealed to IP67, sounds 100 dB and lights up on the sensor, and needs no hub or outlet. The Eve Water Guard is the better reviewed of the two and does something the SwitchBot cannot: its 2 m sensing cable, extendable to 150 m, watches a whole run behind a kitchen or laundry instead of one point, with the same 100 dB siren and light. It needs wall power and a Thread border router, and it stays within Apple Home and Home Assistant. Buy the SwitchBot Water Leak Detector for simple, cheap coverage across platforms, and the Eve Water Guard for an Apple Home that needs one sensor along a long stretch of floor.
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FeatureEve Water GuardSwitchBot Water Leak DetectorWinner
Price$74.95$16.99SwitchBot Water Leak Detector
Rating4.54.4Eve Water Guard
IntegrationsApple HomeKit, Home AssistantGoogle Home, Apple HomeKit, Samsung SmartThings, Home AssistantSwitchBot Water Leak Detector
Weather ResistanceYESIP67Tie
Warranty1 year1 yearTie
ConnectivityBluetooth, Thread Protocol2.4 GHz WiFi, BluetoothTie
SensorsWater LeakWater LeakTie
AlertsWater Leak AlertsWater Leak AlertsTie
On Device Alert SoundYESYESTie
On Device Alert LightYESYESTie

What the differences mean

Detection area

The Eve Water Guard senses along its 2 m cable, which can be extended to 150 m, so one unit covers the whole length of a kitchen counter or a row of appliances. The SwitchBot Water Leak Detector detects only at its own contacts, so it has to sit exactly where the water will run.

Power

The Eve Water Guard plugs into the wall, so there are no batteries to change but it needs an outlet nearby. The SwitchBot Water Leak Detector runs about 2 years on two AAA batteries and can go anywhere.

Platforms and network

The SwitchBot Water Leak Detector joins Wi-Fi and works with Google Home, Apple Home, SmartThings and Home Assistant. The Eve Water Guard uses Thread and Bluetooth, needs a Thread border router, and works with Apple Home and Home Assistant; its Matter support is announced but not yet available.

Local alarm

Both sound 100 dB and flash a light, so neither has an edge in how loudly it warns people nearby.

Which one to buy if

Eve

Eve Water Guard

32% OFF
Prime exclusive deal
$74.95
$109.95
Buy on Amazon USACheck price
  • + Rating: 4.5
  • - Price: $74.95 vs $16.99
  • - Integrations: Apple HomeKit, Home Assistant vs Google Home, Apple HomeKit, Samsung SmartThings, Home Assistant

What owners say

Owners of both credit their sensor with catching real leaks and describe setup as quick. Eve Water Guard owners single out the smoothest Apple Home integration they have used, with no account needed, and a cable that covers a whole appliance run; they call it expensive, note that it needs an outlet and that the fabric cable has to soak up a little water before it triggers, and a few had units that failed to connect or stopped detecting. SwitchBot Water Leak Detector owners praise unboxing to working in minutes and an alert that reached them while travelling, but found the first Wi-Fi and HomeKit pairing fiddly, say the alarm was hard to hear from other rooms and warn that water pooling just beside the puck can go unnoticed.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Eve Water Guard
  • SwitchBot Water Leak Detector

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Frequently Asked Questions

Which is better overall: Eve Water Guard or SwitchBot Water Leak Detector?

The SwitchBot Water Leak Detector for most buyers: it is cheaper, battery powered, needs no hub and works with Google Home, Apple Home, SmartThings and Home Assistant. The Eve Water Guard is better reviewed and the right pick when one sensing cable has to cover a long area in an Apple Home.

Does the SwitchBot Water Leak Detector need a SwitchBot Hub?

No. The SwitchBot Water Leak Detector has its own 2.4 GHz Wi-Fi and Bluetooth, so it connects to your network and phone directly and works with Google Home, Apple Home, SmartThings and Home Assistant without a hub.

What does the Eve Water Guard need to work?

Wall power and, for remote access and automations, a Thread border router. The Eve Water Guard works with Apple Home and Home Assistant; Matter support is announced but not yet available.

Do both have a siren?

Yes. The Eve Water Guard and the SwitchBot Water Leak Detector both sound 100 dB and light up on the device when they detect water.

Who should buy the Eve Water Guard?

Apple Home and Thread households who want one sensor along a whole appliance run, have an outlet nearby and do not want to change batteries.

Who should buy the SwitchBot Water Leak Detector?

Anyone who wants an affordable, hub-free leak sensor at a water heater or washing machine that works with Google Home, Apple Home or SmartThings.

Full comparison table

Compare all 34 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.

  • 34 Water Leak Sensors
  • 36 specs compared
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