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Shelly has released its first mmWave presence sensor, the Presence Gen4, in North America. It can track up to 10 people across 10 customizable zones, supports Matter and local control, and has a listed price of $84.99.
Shelly has released the Presence Gen4, its first mmWave radar sensor, in North America. The device is designed to detect up to 10 people across 10 customizable zones and use their locations to trigger smart-home automations; it also supports Matter and local control.
The sensor uses mmWave radar to detect presence, including small movements that may be missed by conventional motion sensors when someone is sitting still. Shelly says users can view occupancy by defined area in its app and set actions to occur when someone enters or leaves a zone. Possible uses include controlling lighting, climate systems, shades and entertainment equipment.
The Presence Gen4 can be wall-mounted, with a stated 140-degree horizontal field of view and coverage of up to 650 square feet. In a corner installation, the field narrows to 90 degrees and the stated coverage is up to 525 square feet. The device measures 64 by 41 by 26 millimeters without its stand; a USB-C cable and nearby power supply are required.
Shelly lists Wi-Fi, Bluetooth and Zigbee radios, along with Matter support for connections to compatible smart-home platforms. The company also describes local control and custom scripting options. Its U.S. retail price is $84.99, and the source report says it is available through Shelly’s U.S. website.
Zone Tracking for Home Automation
Presence detection can make automations respond to whether a room is occupied, rather than relying only on a sensor noticing movement. Tracking multiple people and assigning them to separate zones could support more targeted actions—for example, adjusting lights or temperature in one part of a larger room while leaving another area unchanged.
The product’s Matter compatibility may also make it easier to connect the sensor to a mixed-brand smart home, though compatibility depends on the specific platform and setup. Shelly’s stated local-control option is relevant to households seeking automations that do not depend on cloud access. The source does not establish that every feature or integration works locally, so buyers should check requirements for their intended setup.
Shelly Enters mmWave Detection
The Presence Gen4 is Shelly’s first mmWave sensor, according to the report. Unlike basic motion sensors, which generally trigger when movement is detected, mmWave radar can register subtle movement and is intended to maintain a presence reading when someone remains relatively still. That distinction is useful for applications such as keeping lights on while a person reads or works.
The reported product also includes height-based detection settings, which users can configure to include or filter out pets, robot cleaners and other smaller objects. A built-in light sensor can detect changes in illumination. These features are presented as adjustable options; their results will depend on placement and configuration in the home.
“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
Performance Still Needs Testing
The report gives Shelly’s stated detection capacity, coverage figures and feature list, but does not provide independent test results for accuracy, reliability or performance across different room layouts. It is also unclear how well the sensor separates people from pets or other moving objects in everyday use, or how many zones and tracking features are available through each supported platform.
The report describes local control but does not specify which functions require an internet connection, how data is stored, or whether all integrations operate without cloud services. It also does not give a date for Amazon availability; the listing is described as available now through Shelly’s U.S. website.
Availability and Real-World Reviews
The Presence Gen4 is listed at $84.99 and is available through Shelly’s U.S. website, according to the source report. Wider retail availability, including the timing of an Amazon listing, was not specified.
For prospective buyers, the next useful information will be independent testing of zone-level tracking, false detections, setup, and performance in different room sizes. Further detail on platform support and which functions remain local will also help clarify how the sensor fits into existing Matter and Shelly installations.
Key Questions
What is the Shelly Presence Gen4?
It is Shelly’s first mmWave radar presence sensor, released in North America for smart-home detection and automation.
How many people and zones can it track?
Shelly says the sensor can detect up to 10 people across 10 customizable zones. The source report does not include independent verification of that capacity.
Does the Presence Gen4 work with Matter?
Yes. The product is listed with Matter support, as well as Wi-Fi, Bluetooth and Zigbee radios. Compatibility with particular devices and features may vary by platform.
How much does it cost?
The reported retail price is $84.99. The source says it is available through Shelly’s U.S. website; a date for Amazon availability was not provided.
Can it detect someone who is not moving?
MmWave radar can detect small movements and is intended to register presence when someone is relatively still. The report does not provide independent test results for detection accuracy in specific conditions.
Source: rss
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