Shelly Plug S Gen3 is one of the smallest Wi-Fi smart plugs, launched by Shelly in 2024. It’s so small that you’ll hardly notice it once plugged into a socket. Thanks to its compact size, you can even plug multiple Shelly Plug S Gen3 units into adjacent sockets. As a Plug & Play device, it’s incredibly easy to set up, taking only a few minutes: simply plug it into a socket and pair it with the free Shelly Cloud smartphone app, and after pairing, you can start using it immediately.
Despite its small size, it can control devices up to 2500W, and thanks to its built-in power meter, you can monitor the energy consumption of the connected devices! Additionally, the LEDs on the Plug S Gen3 don’t just indicate on/off status – you can set them to light up in different colors based on the real-time energy consumption, or you can turn off the LEDs entirely if they bother you, for example, in a bedroom. The LEDs also support night mode, allowing you to set them to emit a lower brightness at night or serve as a stronger night light if needed.
Pairing with the smartphone app on the Plug S Gen3 is done via Bluetooth, making it quick and easy, and once connected to your Wi-Fi router, you can check the plug’s status remotely, turn the plug (and the connected device) on or off, and schedule up to 50 offline timers. You can control a variety of electrical devices with it, including a plug-in floor lamp, and even simulate being home by setting up a home simulation mode, making it look like someone is home every evening.
You can also set the Plug S Gen3 to send a notification to your phone or via email if it detects a specific level of power consumption.
Scheduling Features:
- Set timers to turn on/off based on the days of the week (up to 50 in the Gen3 series).
- Supports sunrise and sunset-based scheduling (e.g., “sunset + 30 minutes”).
- Supports auto-off and auto-on timers, allowing devices to turn on or off after a specified period of time.
Childproof Design:
Shelly has considered children’s safety as well. The unique design of the Plug S prevents children from inserting objects into the smart plug.
Notifications for Appliances:
The Plug S Gen3 not only monitors energy consumption and provides statistics, but it can also send alerts if the power consumption drops below a certain threshold for a specific period. For instance, it can notify you when the washing machine has finished its cycle (if the connected washing machine’s consumption drops) or if the fridge stops drawing power for an hour, indicating that it may have malfunctioned.
Supported Modes:
- Cloud mode: The device connects to the free Shelly Cloud service, which can be accessed via the Shelly Cloud app (available for iOS and Android) or the https://home.shelly.cloud/ website, allowing you to control and configure your devices remotely.
- LAN mode: The device can also operate in local network mode, where it can only be controlled by devices connected to the same local network. Integration with local smart home systems (e.g., REST API or MQTT integration) is supported.
- Wi-Fi Access Point mode: If there is no permanent Wi-Fi network at the installation site, the device can function in Wi-Fi Access Point mode. In this case, you can connect directly to the Wi-Fi AC network broadcast by the plug from a smartphone or laptop and control the device while connected.
The consumption data is stored in the Shelly Cloud when using cloud mode, allowing you to view and download usage history through the app. In cloud mode, Shelly devices can also control each other via the Shelly Cloud Scene (Smart Control) feature, even across different locations (e.g., a Shelly relay installed behind a light switch can control a separate Shelly relay connected to a different outlet). Devices can wirelessly control each other over Wi-Fi and the cloud based on rules you set.
You can also control the devices directly using HTTP commands (Direct Device-to-Device mode) without the Shelly Cloud, even in LAN mode, provided the devices have fixed IP addresses. This means that, even if the internet connection is lost, the devices can still interact with each other locally via actions set in the Shelly app.
Shelly’s proprietary smartphone app and cloud service are available for free to support smart control.
The product supports HTTP/HTTPS webhooks, can be controlled from the cloud, and can run automations without a hub via mjS scripts.
Bluetooth Pairing:
Pairing the Shelly Plug S Gen3 is faster and easier thanks to the built-in (ESP-Shelly-C38F) Bluetooth chip.
More Power, More Features:
The Shelly Plus Plug S is equipped with Shelly’s custom-developed ESP-Shelly-C38F processor, which is faster and more powerful than the previous ESP32, and comes with double the memory (8MB), enabling enhanced features and faster performance in the Gen3 product line. Additionally, the new chip and expanded memory provide compatibility with Matter.
Shelly Plus Features:
- Supports HTTP/HTTPS webhooks, allowing easy integration, notifications, or control of compatible devices or other automation systems.
- Supports sunrise/sunset-based scheduling with up to a +/- 23-hour offset.
- Can handle up to 50 offline timers stored on the device.
- Supports mjS scripts, allowing users to create custom functions and features. Shelly Plus devices can execute multiple scripts simultaneously, based on various triggers such as input/output status, sensor data, or WLAN requests.
Integrations:
Shelly is one of the easiest smart devices to integrate with its native firmware. It supports control via MQTT and REST API. It’s compatible with voice control through Google Home and Amazon Echo.
Through the Shelly Cloud, many Shelly devices are already integrated with the SmartThings platform.
Additionally, the native firmware supports several other open-source and third-party systems, including:
- MQTT
- HomeSeer
- ioBroker
- Home Assistant
- openHAB
- Domoticz
- SYMCAN
- nymea
- Hubitat
- Hoobs
- REST API
Product Features:
- Control via the free Shelly Cloud mobile app (available for iOS and Android) from your phone or tablet.
- Connects to your home/office Wi-Fi network, allowing you to access and control it remotely over the internet.
- Built-in power meter to measure energy consumption and help save money with smart scheduling.
Built-in Safety Features:
- An internal temperature sensor protects against overheating by shutting off the plug if it detects excessive heat.
- The power meter detects if the connected load exceeds the maximum limit and shuts off the device.
