Shelly’s First mmWave Sensor Can Track 10 People Across 10 Zones — And It Works With Matter
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Shelly has released its first mmWave radar presence sensor, the Presence Gen4, in North America for $84.99. The company says it can track up to 10 people across 10 customizable zones and supports Matter, local control and automations; independent performance testing was not provided in the source report.

Shelly has released the Presence Gen4, its first mmWave radar presence sensor, in North America, with a listed price of $84.99. The device is designed to detect up to 10 people across 10 customizable zones and connect with Matter-compatible smart-home systems, letting users build automations around where people are rather than relying only on motion triggers.

The Gen4 uses mmWave radar to detect presence and small movements, including when someone is relatively still. According to Matter Alpha’s report, the Shelly app can show occupancy in each configured zone. Users can set the sensor to trigger actions when people enter or leave an area, such as switching lights on or adjusting heating and cooling.

Shelly lists a 140-degree horizontal field of view when the unit is wall-mounted, with coverage of up to 650 square feet. Corner placement narrows the field to 90 degrees and the reported coverage to 525 square feet. The sensor measures 64 by 41 by 26 millimeters without its stand; the stand increases its dimensions. It is powered over USB-C, so its placement depends on access to a suitable power source.

The device includes Wi-Fi, Bluetooth and Zigbee radios, alongside Matter support. The report says it can work with platforms including Google Home, Amazon Alexa, Apple Home, Samsung SmartThings and Home Assistant. Shelly also supports local control and custom scripting. The sensor has a light sensor and adjustable minimum- and maximum-height settings, which can help users include or filter out pets and small objects such as robot cleaners.

At a glance
announcementWhen: Released in North America; available no…
The developmentShelly has launched the Presence Gen4, its first mmWave presence sensor, in North America.

Zone-Based Presence for Smart Homes

The main distinction from a basic motion sensor is that the Gen4 is intended to report continued presence and location by zone, not merely movement at a particular moment. That could support more targeted routines: a light might turn on in an occupied part of a room while other zones remain inactive, or climate controls could respond to occupancy rather than a fixed schedule.

Matter compatibility could also make the sensor useful to households that combine devices from different brands. The report describes integrations with several major platforms, but the practical experience will depend on platform support and how each system exposes the sensor’s zone and occupancy data. Local control may appeal to users seeking automation that does not rely on a cloud connection, although the source does not detail which functions remain available offline.

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Shelly’s Move Into Presence Radar

Shelly already sells smart-home devices, but the Presence Gen4 is described in the source report as the company’s first mmWave sensor. The product is aimed at automations that need more than a short-lived indication that something moved. Unlike a conventional motion-triggered setup, radar-based presence sensing is designed to keep detecting small movements while a person remains in place.

The product is positioned for larger rooms and open-plan spaces, with the reported coverage varying by mounting position. Its ten-zone configuration lets owners divide an area into separate detection regions, while height settings offer a way to tune detection for a particular room. These are product features described by the report, not independently verified results from a published test.

““Accurate presence detection unlocks the kind of smart home experience customers have long dreamed about, where everything from lighting to HVAC respond automatically without needing to lift a finger.””

— Matt Brown, CMO of Shelly USA

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Performance and Platform Details

The source report gives Shelly’s stated detection capacity, coverage figures and compatibility claims, but it does not provide independent accuracy tests, false-detection rates or results from testing in different room layouts. Actual performance may depend on mounting position, room conditions and how zones are configured. It is also not clear from the report whether all supported platforms expose the same occupancy and zone-level controls.

The report describes local control but does not specify which features require an internet connection, how long device data is stored, or what privacy controls are available. It says the product is available through Shelly’s U.S. store and mentions Amazon availability, but does not provide a separate Amazon launch date or clarify availability outside North America.

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Availability and User Testing

The Presence Gen4 is listed at $84.99 and is available now through Shelly’s U.S. store, according to the report. Buyers considering it for a particular smart-home platform will need to check that platform’s current Matter and sensor support, especially for zone-level functions.

More detail from hands-on testing, platform documentation or Shelly could clarify how reliably the sensor distinguishes people from pets and small devices, and which features operate locally. The source report does not give a timetable for wider regional availability or further product updates.

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Key Questions

What is the Shelly Presence Gen4?

It is Shelly’s first mmWave radar presence sensor, designed to detect occupancy and trigger smart-home automations.

How many people and zones can it track?

Shelly’s stated capacity is up to 10 people across 10 customizable zones. The source report does not include independent testing of that capacity.

Does the Presence Gen4 work with Matter?

Yes. The report says it supports Matter and lists Google Home, Amazon Alexa, Apple Home, Samsung SmartThings and Home Assistant among compatible platforms. Available features may vary by platform.

How much does it cost, and where is it available?

The reported retail price is $84.99. The source says it is available now through Shelly’s U.S. store; it does not give a confirmed date for wider availability.

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