The Smart Device Compare comparison

Shelly Flood Gen4 vs X-Sense Wi-Fi Water Leak Detector

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Shelly Flood Gen4 and X-Sense Wi-Fi Water Leak Detector

A summary of selected recorded differences between these water leak sensors. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Freeze Temperature Alerts (alerts): Shelly Flood Gen4 — Yes; X-Sense Wi-Fi Water Leak Detector — No.
Temperature Alerts (alerts): Shelly Flood Gen4 — Yes; X-Sense Wi-Fi Water Leak Detector — No.
2.4 GHz Wi-Fi (connectivity): Shelly Flood Gen4 — Yes (802.11 b/g/n/ax); X-Sense Wi-Fi Water Leak Detector — No.
Bluetooth (connectivity): Shelly Flood Gen4 — Yes; X-Sense Wi-Fi Water Leak Detector — No.

Specifications to check side by side

Other (connectivity): Shelly Flood Gen4 — No; X-Sense Wi-Fi Water Leak Detector — Sub-1G (SBS50 Base Station required) (The SWS51 detector links to the X-Sense SBS50 base station over 915 MHz (US) / 868 MHz (EU), up to 1,640 ft (500 m) in open air; the base station carries the 2.4 GHz Wi-Fi connection (802.11b/g/n)).
Battery Life (power): Shelly Flood Gen4 — 2 years; X-Sense Wi-Fi Water Leak Detector — 3 years.
Battery Type (power): Shelly Flood Gen4 — 4x AA; X-Sense Wi-Fi Water Leak Detector — 2x AAA.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Shelly

Shelly Flood Gen4

Last updated October 2026

View full device profile

Option 2 · X-Sense

X-Sense Wi-Fi Water Leak Detector

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

16differences with recorded values for every device

0rows with missing or unspecified information

Consider your setup

Apple Home

Shelly Flood Gen4Yes
X-Sense Wi-Fi Water Leak DetectorNo

Confirm which features appear in Apple Home and whether extra hardware or a subscription is needed for your intended use.

Inspect the specifications

Consider your setup

Matter

Shelly Flood Gen4Yes
X-Sense Wi-Fi Water Leak DetectorNo

Confirm the exact device type and the features exposed in your chosen platform. Protocol support does not establish feature parity across apps.

Inspect the specifications

Consider your setup

Battery Life

Shelly Flood Gen42 years
X-Sense Wi-Fi Water Leak Detector3 years

Compare the stated test conditions. Catalog battery figures alone do not predict runtime in your home.

Inspect the specifications

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 28 of 28 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Freeze Temperature Alerts

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

Low Battery Alerts

Shelly Flood Gen4: Yes
Catalog note
Short beep (0.3 sec ON / 5 sec OFF) indicates low battery when the battery level is below 20%
X-Sense Wi-Fi Water Leak Detector: Yes

Tamper Alerts

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Temperature Alerts

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

Water Leak Alerts

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: Yes

Connectivity

2.4 GHz Wi-Fi

Shelly Flood Gen4: Yes
Catalog note
802.11 b/g/n/ax
X-Sense Wi-Fi Water Leak Detector: No

5 GHz Wi-Fi

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Bluetooth

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

Other

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: Sub-1G (SBS50 Base Station required)
Catalog note
The SWS51 detector links to the X-Sense SBS50 base station over 915 MHz (US) / 868 MHz (EU), up to 1,640 ft (500 m) in open air; the base station carries the 2.4 GHz Wi-Fi connection (802.11b/g/n)

Thread

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Z Wave

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Zigbee

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

Features

Automations

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

On Device Alert Light

Shelly Flood Gen4: Yes
Catalog note
LED button indicator
X-Sense Wi-Fi Water Leak Detector: No

On Device Alert Sound

Shelly Flood Gen4: Yes
Catalog note
Built-in buzzer for local alerts
X-Sense Wi-Fi Water Leak Detector: Yes
Catalog note
110 dB on the detector (the SBS50 base station alarm is 100 dB)

Included Accessories

Sensor Cable

Shelly Flood Gen4: Yes
Catalog note
2m extendable leak sensor cable
X-Sense Wi-Fi Water Leak Detector: No

Integrations

Alexa

Shelly Flood Gen4: No
Catalog note
Alexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either
X-Sense Wi-Fi Water Leak Detector: No
Catalog note
Alexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either

Apple Home

Shelly Flood Gen4: Yes
Catalog note
Via Matter
X-Sense Wi-Fi Water Leak Detector: No

Google Home

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: No

Home Assistant

Shelly Flood Gen4: Yes
X-Sense Wi-Fi Water Leak Detector: Yes
Catalog note
Community X-Sense integration for Home Assistant (HACS), which lists this model and reads it from the X-Sense cloud account

Matter

Shelly Flood Gen4

Yes

Manufacturer source

Matter support is documented.

Shelly Flood Gen4 manufacturer product page →

Source section: Product description
Model: Shelly Flood Gen4
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

This evidence is for Flood Gen4, not Flood S Gen4.

Document check only; not a hands-on test or verification of every regional or firmware variant.

X-Sense Wi-Fi Water Leak Detector

SmartThings

Shelly Flood Gen4: Yes
Catalog note
Via Matter
X-Sense Wi-Fi Water Leak Detector: No

Power

Battery Life

Shelly Flood Gen4: 2 years
X-Sense Wi-Fi Water Leak Detector: 3 years

Battery Type

Shelly Flood Gen4: 4x AA
X-Sense Wi-Fi Water Leak Detector: 2x AAA

Wired

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Sensors

Temperature

Shelly Flood Gen4

Yes

Manufacturer source

An integrated sensor measures temperature.

Shelly Flood Gen4 manufacturer product page →

Source section: Product description
Model: Shelly Flood Gen4
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

This evidence is for Flood Gen4, not Flood S Gen4.

Document check only; not a hands-on test or verification of every regional or firmware variant.

X-Sense Wi-Fi Water Leak Detector

Tilt

Shelly Flood Gen4: No
X-Sense Wi-Fi Water Leak Detector: No

Water Leak

Shelly Flood Gen4

Yes

Manufacturer source

The device detects water leaks.

Shelly Flood Gen4 manufacturer product page →

Source section: Product description
Model: Shelly Flood Gen4
Region: Manufacturer product page; no universal regional compatibility implied
Firmware: Not specified by this source
Checked: 2026-10-04

This evidence is for Flood Gen4, not Flood S Gen4.

Document check only; not a hands-on test or verification of every regional or firmware variant.

X-Sense Wi-Fi Water Leak Detector

Yes

Catalog note

4 bottom sensor probes and 2 top sensor probes to detect water leaks and floods, providing an early warning of water damage; suitable for kitchens, bathrooms, basements, and more

Specifications for Shelly Flood Gen4 versus X-Sense Wi-Fi Water Leak Detector
Specification	Shelly Flood Gen4	X-Sense Wi-Fi Water Leak Detector
Alerts
Freeze Temperature Alerts	Yes	No
Low Battery Alerts	Yes Catalog note Short beep (0.3 sec ON / 5 sec OFF) indicates low battery when the battery level is below 20%	Yes
Tamper Alerts	No	No
Temperature Alerts	Yes	No
Water Leak Alerts	Yes	Yes
Connectivity
2.4 GHz Wi-Fi	Yes Catalog note 802.11 b/g/n/ax	No
5 GHz Wi-Fi	No	No
Bluetooth	Yes	No
Other	No	Sub-1G (SBS50 Base Station required) Catalog note The SWS51 detector links to the X-Sense SBS50 base station over 915 MHz (US) / 868 MHz (EU), up to 1,640 ft (500 m) in open air; the base station carries the 2.4 GHz Wi-Fi connection (802.11b/g/n)
Thread	No	No
Z Wave	No	No
Zigbee	Yes	No
Features
Automations	Yes	No
On Device Alert Light	Yes Catalog note LED button indicator	No
On Device Alert Sound	Yes Catalog note Built-in buzzer for local alerts	Yes Catalog note 110 dB on the detector (the SBS50 base station alarm is 100 dB)
Included Accessories
Sensor Cable	Yes Catalog note 2m extendable leak sensor cable	No
Integrations
Alexa	No Catalog note Alexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either	No Catalog note Alexa has no water leak sensor type: the Matter Water Leak Detector has no Alexa capability mapping, and bridges such as SmartThings or Home Assistant cannot expose a moisture sensor either
Apple Home	Yes Catalog note Via Matter	No
Google Home	Yes	No
Home Assistant	Yes	Yes Catalog note Community X-Sense integration for Home Assistant (HACS), which lists this model and reads it from the X-Sense cloud account
Matter	Yes Manufacturer source Matter support is documented. Shelly Flood Gen4 manufacturer product page → Source section Product description Model Shelly Flood Gen4 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 This evidence is for Flood Gen4, not Flood S Gen4. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
SmartThings	Yes Catalog note Via Matter	No
Power
Battery Life	2 years	3 years
Battery Type	4x AA	2x AAA
Wired	No	No
Sensors
Temperature	Yes Manufacturer source An integrated sensor measures temperature. Shelly Flood Gen4 manufacturer product page → Source section Product description Model Shelly Flood Gen4 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 This evidence is for Flood Gen4, not Flood S Gen4. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Tilt	No	No
Water Leak	Yes Manufacturer source The device detects water leaks. Shelly Flood Gen4 manufacturer product page → Source section Product description Model Shelly Flood Gen4 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 This evidence is for Flood Gen4, not Flood S Gen4. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes Catalog note 4 bottom sensor probes and 2 top sensor probes to detect water leaks and floods, providing an early warning of water damage; suitable for kitchens, bathrooms, basements, and more

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology