The Smart Device Compare comparison

Shelly Flood Gen4 vs YoLink Water Leak Sensor 4

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Shelly Flood Gen4 and YoLink Water Leak Sensor 4

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

2.4 GHz Wi-Fi (connectivity): Shelly Flood Gen4 — Yes (802.11 b/g/n/ax); YoLink Water Leak Sensor 4 — No.
Bluetooth (connectivity): Shelly Flood Gen4 — Yes; YoLink Water Leak Sensor 4 — No.
Zigbee (connectivity): Shelly Flood Gen4 — Yes; YoLink Water Leak Sensor 4 — No.
Sensor Cable (included accessories): Shelly Flood Gen4 — Yes (2m extendable leak sensor cable); YoLink Water Leak Sensor 4 — No.

Specifications to check side by side

Temperature Alerts (alerts): Shelly Flood Gen4 — Yes; YoLink Water Leak Sensor 4 — Low Temperatures.
Other (connectivity): Shelly Flood Gen4 — No; YoLink Water Leak Sensor 4 — LoRa (YoLink hub required).
Battery Life (power): Shelly Flood Gen4 — 2 years; YoLink Water Leak Sensor 4 — 5 years.
Battery Type (power): Shelly Flood Gen4 — 4x AA; YoLink Water Leak Sensor 4 — 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 · YoLink

YoLink Water Leak Sensor 4

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.

13differences with recorded values for every device

0rows with missing or unspecified information

Consider your setup

Apple Home

Shelly Flood Gen4Yes
YoLink Water Leak Sensor 4No

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
YoLink Water Leak Sensor 4No

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
YoLink Water Leak Sensor 45 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
YoLink Water Leak Sensor 4: Yes

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%
YoLink Water Leak Sensor 4: Yes

Tamper Alerts

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: No

Temperature Alerts

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: Low Temperatures

Water Leak Alerts

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: Yes

Connectivity

2.4 GHz Wi-Fi

Shelly Flood Gen4: Yes
Catalog note
802.11 b/g/n/ax
YoLink Water Leak Sensor 4: No

5 GHz Wi-Fi

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: No

Bluetooth

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: No

Other

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: LoRa (YoLink hub required)

Thread

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: No

Z Wave

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: No

Zigbee

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: No

Features

Automations

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: Yes

On Device Alert Light

Shelly Flood Gen4: Yes
Catalog note
LED button indicator
YoLink Water Leak Sensor 4: Yes

On Device Alert Sound

Shelly Flood Gen4: Yes
Catalog note
Built-in buzzer for local alerts
YoLink Water Leak Sensor 4: Yes
Catalog note
105dB

Included Accessories

Sensor Cable

Shelly Flood Gen4: Yes
Catalog note
2m extendable leak sensor cable
YoLink Water Leak Sensor 4: 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
YoLink Water Leak Sensor 4: 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
YoLink Water Leak Sensor 4: No

Google Home

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: No

Home Assistant

Shelly Flood Gen4: Yes
YoLink Water Leak Sensor 4: Yes

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.

YoLink Water Leak Sensor 4

SmartThings

Shelly Flood Gen4: Yes
Catalog note
Via Matter
YoLink Water Leak Sensor 4: No

Power

Battery Life

Shelly Flood Gen4: 2 years
YoLink Water Leak Sensor 4: 5 years

Battery Type

Shelly Flood Gen4: 4x AA
YoLink Water Leak Sensor 4: 2x AAA

Wired

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: 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.

YoLink Water Leak Sensor 4

Low Temperatures

Tilt

Shelly Flood Gen4: No
YoLink Water Leak Sensor 4: 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.

YoLink Water Leak Sensor 4

Yes

Specifications for Shelly Flood Gen4 versus YoLink Water Leak Sensor 4
Specification	Shelly Flood Gen4	YoLink Water Leak Sensor 4
Alerts
Freeze Temperature Alerts	Yes	Yes
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	Low Temperatures
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	LoRa (YoLink hub required)
Thread	No	No
Z Wave	No	No
Zigbee	Yes	No
Features
Automations	Yes	Yes
On Device Alert Light	Yes Catalog note LED button indicator	Yes
On Device Alert Sound	Yes Catalog note Built-in buzzer for local alerts	Yes Catalog note 105dB
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
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	5 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.	Low Temperatures
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

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