The Shelly Presence Gen4 is a motion sensor that uses mmWave radar to detect the actual presence of people even when they remain completely still. The device can track up to 6 people simultaneously, supports up to 10 configurable detection zones, and monitors an area of up to 42 m², ensuring exceptionally precise home automation. Wi-Fi 6 connectivity, Zigbee 3.0, Bluetooth 5 LE, and Matter certification enable easy integration with modern smart home systems, while the compact design (64 × 41 × 26 mm without the base) allows for discreet installation of the sensor in almost any room.
Traditional motion sensors often stop detecting a user when they sit at a desk, read a book, or watch TV. Shelly Presence Gen4 solves this problem with a radar operating in the 60–64 GHz band, which detects the presence of even a completely motionless person. As a result, lighting, air conditioning, and other automated systems remain active as long as someone is actually in the room, ensuring greater comfort and eliminating unnecessary shutdowns of devices.
The device can simultaneously identify and track up to 6 people, allowing for the creation of significantly more advanced automation scenarios. Support for up to 10 independent detection zones enables different actions to be assigned to specific areas of a room. In large living rooms, offices, or open spaces, lighting can be turned on only where users are currently present, which increases convenience and helps reduce unnecessary energy consumption. Additionally, the device displays detected people on a room map, allowing you to monitor their locations in real time and more easily configure zones and automations tailored to the interior layout.
The Shelly Presence Gen4 sensor allows you to adjust detection sensitivity and transmission power, so you can tailor its operation to a specific room. It offers floor-level motion filtering and the ability to ignore small objects, such as pets or robot vacuums. This prevents accidental triggering of automations and ensures the system responds primarily to human presence.
In addition to detecting presence, the device also monitors ambient light levels and recognizes three states: dark, dim, and bright. As a result, automations can take into account not only the presence of users but also current lighting conditions. This allows for the creation of more natural scenes, such as turning on soft lighting at dusk or full brightness after dark.
Shelly Presence Gen4 supports Wi-Fi 6, Bluetooth 5 LE, Zigbee 3.0, and Matter over Wi-Fi, making it easy to integrate into your chosen smart home ecosystem. It works with Shelly Cloud, Home Assistant, and other popular automation platforms. It also supports Amazon Alexa, Google Smart Home, and Samsung SmartThings, and the built-in web interface allows you to directly configure, monitor, and change the device’s settings from a web browser—without needing additional apps. When integrated with Matter-compatible systems, one room zone is available by default. However, the sensor supports up to 10 zones, and each additional zone added is presented in the Matter system as a separate component, allowing you to create more complex automations.
With a compact housing measuring just 64 × 41 × 26 mm (without the base), the sensor blends easily into any room’s decor. It can be placed on a shelf, table, or cabinet thanks to its stable base, or mounted on a wall using double-sided tape or the included screws. The device also supports 180° inverted mounting, allowing you to better adapt its operation to the room’s layout. The recommended mounting height is 2 m, and the maximum room height is 5 m.
Shelly Presence Gen4 is ideal for homes, apartments, hotels, offices, as well as commercial facilities and public institutions. Automatically turning off lights and devices when you leave a room helps reduce energy consumption, while precise presence detection enhances the convenience of everyday smart home use. The mmWave radar operates without cameras, allowing it to monitor user presence while maintaining privacy—which is particularly important in bedrooms, home offices, and bathrooms.
| Manufacturer | Shelly |
|---|---|
| Model | Presence Gen4 Black |
| Dimensions (H × W × D) | 64 × 41 × 26 mm (without base) 73 × 41 × 37 mm (with base) |
|---|---|
| Weight | 42 g (without base) 85 g (with base) |
| Mounting method | Freestanding base, adhesive tape, screws and wall anchors |
| Housing material | Plastic with an aluminum back |
| Housing color | Black |
| Operating temperature range | -20°C to 40°C |
|---|---|
| Operating humidity range | 30% to 70% RH |
| Maximum operating altitude | 2000 m |
| Power supply | 5 V DC / 1 A (via USB-C) |
|---|---|
| Power consumption | 2.5 W (nominal), 3.5 W (maximum) |
| Light sensor | Yes |
|---|---|
| Radar sensor | Yes |
| Protocol | 802.11 b/g/n/ax |
|---|---|
| Radio band | 2401–2483 MHz |
| Maximum transmission power | <20 dBm |
| Range | Up to 30 m (indoors), up to 50 m (outdoors) |
| Protocol version | 5 (LE) |
|---|---|
| Radio band | 2402–2480 MHz |
| Maximum transmission power | <20 dBm |
| Range | Up to 10 m (indoors), up to 30 m (outdoors) |
| Protocol | 802.15.4 |
|---|---|
| Radio band | 2405–2480 MHz |
| Maximum transmission power | <20 dBm |
| Range | Up to 100 m (indoors), up to 300 m (outdoors) |
| Processor | ESP-Shelly-C68F |
|---|---|
| Flash memory | 8 MB |
| Schedules | 20 |
|---|---|
| Advanced schedules | Yes |
| Webhooks (URL actions) | 20 webhooks (up to 5 URLs per webhook) |
| Script support | Yes |
| MQTT support | Yes |
| UDP support | Yes |
| Encryption | Yes |
| KVS (Key-Value Store) | Yes |
| Radar operating frequency | 60–64 GHz |
|---|---|
| Object tracking | Yes (up to 6 people) |
| Detection area (wall mounting) | 140° horizontally (70° in each direction) with 8 × 8 m range, 120° vertically |
| Detection area (corner mounting) | 90° (45° in each direction) with 7 × 7 m range |
| Stationary presence detection | Yes (up to 3 m) |
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