Smart home technology is evolving rapidly, and with it, home automation devices must stay up-to-date to meet new demands for connectivity, automation, and efficiency. In this regard, Shelly has made a statement with her new Gen4 family., a multi-protocol range that promises to revolutionize the control and management of the connected home.
Presented during CES 2025, The Shelly Gen4 series introduces significant technical improvements, adding full Matter compatibility and expands its range of uses thanks to new devices optimized for energy control, lighting, security, and much more. In this article, we'll break down all the features, models, and advantages offered by this new generation of home automation products in great detail.
Multi-protocol support: Wi-Fi, Zigbee, Bluetooth and Matter
One of the main new features of the fourth generation of Shelly is Simultaneous support for multiple wireless communication protocols: Wi-Fi, Zigbee, Bluetooth, and Matter over 802.15.4 radio. This makes Gen4 devices highly flexible, adaptable to any existing smart home ecosystem.
Wi-Fi It remains the basic pillar for most users thanks to its stability and scope, but now it adds Zigbee as a low-latency, energy-efficient alternative. The inclusion of Bluetooth Improves direct communication between sensors and relays, allowing the use of devices as gateways between technologies, especially useful in large homes or distributed installations.
Furthermore, Matter compatibility It allows all Gen4 devices to integrate with leading platforms like Apple HomeKit, Google Home, Amazon Alexa, and Samsung SmartThings without the need for dedicated apps. This ensures interoperability, reduces ecosystem fragmentation, and simplifies control for the end user.
New Gen4 relays and micromodules: complete control of lights and blinds
The basis of any home automation system is usually in the management of lights and electrical devices, and that is where the new ones stand out. Shelly Gen4 smart micromodules and relaysEach one adapts to different needs based on channels, supported power, size, or additional features such as consumption monitoring.
- Shelly 1 Gen4: Single-channel dry-contact relay. It does not measure current consumption, making it ideal for applications requiring dry contacts, such as automatic doors, boilers, or locks.
- Shelly 1PM Gen4: Similar to the previous one, but capable of measuring power consumption. It supports up to 16A and is suitable for automating plugs and lights.
- Shelly 2PM Gen4: Dual-channel device with energy monitoring, perfect for automating motorized blinds (one phase for raising and the other for lowering) or controlling two lighting circuits from a single unit.
All of them make up the new ESP-Shelly-C68F chip based on RISC-V architecture (ESP32-C6), which enables multi-protocol communication and faster response times. Its technical specifications are impressive: up to 16A with 110-240V AC power and long-range Wi-Fi (30 m indoors and up to 50 m outdoors).
Mini models: reduced size, same functionalities
For installations where space is limited, such as crowded junction boxes, Shelly has launched the versions Mini Gen4 with a 35% smaller size compared to its standard counterparts, without sacrificing core features.
- Shelly 1 Mini Gen4Compact relay with a single dry contact channel, supports up to 8A, ideal for lights or small appliances. Does not offer energy monitoring.
- Shelly 1PM Mini Gen4: Reduced version of the 1PM, with built-in power metering, also up to 8A. It's not recommended for outlets because it doesn't reach the usual 16A.
These models are a great solution for existing homes where existing junction boxes don't offer enough space. Although they're limited to 8A, they're more than enough for lighting fixtures, fans, or low-load equipment.
Advanced energy meters and photovoltaic management
Energy efficiency is one of the pillars of the modern smart home. That's why Shelly has expanded its line with new devices dedicated to energy efficiency. monitoring of electricity consumption and integration with solar (PV) installation.
- Shelly EM Mini Gen4Compact consumption meter capable of handling up to 16A. It also acts as a Zigbee and Wi-Fi repeater to improve connectivity for other devices. Ideal for devices such as air conditioners, refrigerators, or heating systems.
- Shelly 3EM-63 Gen3Designed for electrical cabinets (DIN format), it allows control of three single-phase or one three-phase power supply. Ideal for professional installations and for monitoring both consumption and production of solar systems. Includes proactive surplus management and smart alerts via the Shelly cloud.
These devices are especially useful if the goal is to control electricity consumption or integrate Shelly with renewable energy, providing accurate statistics in real time.
Wall Display X2 control panel
One of the most striking products of this new series is the Shelly Wall Display X2, a touch panel with a 6.95-inch screen that allows you to manage all your Shelly devices from a single location.
This system installs in standard electrical boxes and has integrated temperature, humidity and light sensors, which makes it a sort of central home automation brain for the entire home. It also includes an internal relay and can monitor power consumption.
The display is powered directly by AC power, making it very practical to integrate alongside existing switches. It can be used for create scenes, automations or act on sensors such as the water leak detector.
More security with smart sensors
Among the new features presented by Shelly, sensors also feature prominently. Some of the most important are:
- Shelly Flood Sensor Gen4: Detects water leaks and sends immediate alerts. It can detect moisture from both the device itself and the power cable, thus expanding the detection area.
- Shelly GASNatural gas sensor with visual and audible alerts. Complemented by relays, it can automatically cut off the supply if it detects a leak.
- Shelly H&T: Wi-Fi temperature and humidity sensor with long-lasting battery life and support for climate automation.
These sensors strengthen home security and allow for automatic actions to be taken in the event of an incident (for example, turning off a water valve if a leak is detected or turning off a heater if the temperature is too high).
Long-range communication with LoRa support
Another important novelty is the future add-on that will allow Add LoRa connectivity to Gen4 and Gen3 devicesLoRa (Long Range) enables communication over long distances (up to 5 km), making it perfect for installing devices in remote areas, large gardens, farms, or greenhouses.
With this option, Shelly is making inroads into rural and semi-urban IoT projects., where Wi-Fi or Zigbee networks might not reach with adequate consistency. It would also allow devices to be connected without the need for such a dense mesh network, making deployment cheaper and simpler.
Integration with Home Assistant and advanced home automation
One of the biggest attractions of Shelly products is that all of its devices are fully compatible with Home AssistantIn fact, they integrate natively, allowing you to configure devices, automations, notifications, and even remote control without the need for additional software.
Each Shelly includes a own intuitive web interface for its advanced configuration, in addition to the Shelly Smart Control official app, available on Android, iOS, Huawei, and web browsers. This provides control redundancy and makes it extremely easy to get started.
Additionally, all devices include support for MQTT protocol, HTTP, scripting and scheduling (up to 20 different ones), allowing for extreme customization in homes with special needs.
Prices and availability in Spain
The new Gen4 line of devices are now available at the official Shelly store and distributors in Spain. Prices are competitive, remaining within the brand's usual range:
- Shelly 1 Gen4: €18,50
- Shelly 1PM Gen4: €21,00
- Shelly 1 Mini Gen4: €15,50
- Shelly 1PM Mini Gen4: €17,50
- Shelly EM Mini Gen4: €16,50 (currently out of stock)
The Shelly Gen4 range marks a clear technological advance in the smart home market. Its commitment to complete connectivity, device variety, and focus on energy efficiency and automation position it as one of the most attractive options for those looking to modernize their homes without the hassle of complex installations or dependence on proprietary brands. Whether controlling lights, blinds, electrical consumption, or sensors, this new family offers solutions for almost any home scenario, with the added benefit of seamless integration into open platforms like Home Assistant.