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What are the key differences between Shelly 2PM Gen3 & 2PM Gen4 for motorised blind & shutter control?
Smart motorised blind and roller shutter control is one of those upgrades that feels simple on the surface, but gets more interesting once you start comparing devices. You’re not just choosing something that opens and closes a blind. You’re choosing how that blind connects, how it behaves in automations, and how neatly it fits into the rest of your smart home.
That’s where the Shelly 2PM range comes in. Both the Shelly 2PM Gen3 and Shelly 2PM Gen4 can be used for compatible motorised roller shutters, blinds, curtains and awnings. Both are compact “in-wall” modules. Both offer smart and manual wall switch control, power metering and smart automation features. But there are some important differences, especially if you’re comparing Shelly 2PM Gen3 vs Gen4 with Wi-Fi, Matter, Zigbee or long-term flexibility in mind.
Here’s what both Shelly 2PM models do...
Both the Shelly 2PM Gen3 and Shelly 2PM Gen4 are designed to control two electrical outputs. In everyday terms, that means they can switch two separate circuits, or be configured for cover control where one output drives a motor up/open and the other drives it down/closed.
For roller shutters and blinds, that second use case is the important one. When set up in cover mode, the Shelly 2PM isn’t just acting like a basic on/off relay; it can control a compatible 24V DC or 240V AC bi-directional (“dumb”) motor and help manage the open and closed positions of shutters, blinds or awnings. This is what makes Shelly 2PM roller shutter control so useful. Once installed and calibrated correctly, you can open a blind to a set percentage, close blinds automatically at sunset, or include them in scenes such as “Good Morning”, “Away Mode” or “Movie Night”.
Both models also include power metering, which is handy for more than just checking energy use. With motorised blinds and shutters, power monitoring can assist with calibration and help the device understand what the motor is doing. That’s one reason why Shelly 2PM blinds control is such a popular option for people who want more than simple app-based switching.
Shelly 2PM Gen 3 & Gen4
Shelly 2PM Gen3 Wi-Fi Double Relay and Motor Controller
NEW. Introducing the latest Gen3 version of Shelly's most popular dual channel Wi-Fi module... Shelly 2PM Gen3. Easily add smart, independent on /off control to 2 separate electrical circuits and monitor the connected load's power consumption. Or control a wide range of motorised blinds, shutters or awnings from anywhere with the World's smallest WiFi-operated double relay switch with roller shutter functionality. Connect Shelly 2PM Gen3 directly to your Wi-Fi network (no HUB required) - or include it in your hub of choice (including Home Assistant).
Shelly 2PM Gen4 Wi-Fi Double Relay or Motor Controller
The Shelly 2PM Gen4 is a 2 channel smart relay (on/off), able to manage loads of up to 10A per channel (16A max combined), with built-in power metering. Alternatively, you can use 2PM Gen 4 to control 240V AC shutter and blind motors. Easy, app-based remote control over standard WiFi (no hub required), the 2PM Gen4 can also connect over Matter or Zigbee to be seamlessly adopted into your pre-existing smart home systems.
The main difference? Connectivity!
The biggest difference between Shelly 2PM Gen3 and Gen4 is how they connect. Shelly 2PM Gen3 is primarily a Wi-Fi smart controller, with Bluetooth included for setup and related functions. For a lot of homes, that’s perfectly fine. Wi-Fi is familiar, doesn’t require a dedicated hub, and works well when the signal is strong at the installation point.
If your smart home is mostly Wi-Fi based, or you already use other Shelly devices through the Shelly app, Gen3 remains a very capable option. It gives you local control, scheduling, automation features and compatibility with common smart home platforms, depending on your setup.
Shelly 2PM Gen4 is more flexible. It supports Wi-Fi, Bluetooth, Zigbee and Matter, which gives it a much broader range of integration options. This makes it especially appealing for newer smart homes where different platforms and protocols may need to work together. That’s the real reason why so many Australians are looking closely at Shelly 2PM Gen4 options at the moment. It’s not just the newer model; it’s the more adaptable one… and future proof.
Why Matter matters
Matter is one of the headline differences in this comparison, but it’s worth being realistic about what that means. Shelly 2PM Matter support can make it easier for devices to work across major smart home ecosystems, including platforms like Apple Home, Google Home, SmartThings and others. In theory, that means less platform lock-in and easier control across different apps and assistants.
In practice, Matter is still evolving. Some advanced features may behave differently depending on the platform, firmware and how the device is exposed. For deeper configuration, calibration and fine-tuning, many users will still use the Shelly app, Shelly web interface, Home Assistant or another more advanced control system.
The Shelly 2PM Gen3 can support Matter via firmware, while Gen4 has Matter as part of its wider multiprotocol design. If you only need a reliable Wi-Fi blind controller, that may not be a deciding factor. But if you’re planning a mixed smart home and want stronger future compatibility, Gen4 is the more sensible long-term choice.
The Zigbee advantage
The other major Gen4 advantage is Zigbee. Zigbee is widely used in smart homes because it creates a mesh network. Instead of every device relying directly on your Wi-Fi router, Zigbee devices can pass signals through other compatible Zigbee devices, depending on your setup. This can be useful in larger homes, apartments with crowded Wi-Fi, or installations where you want to reduce the number of devices sitting on your wireless network.
A Shelly 2PM Gen4 roller shutter setup can potentially fit into a Zigbee-based system, giving you another way to integrate motorised blinds or shutters with sensors, switches and automations. That might be useful if you already use a Zigbee hub, Home Assistant, SmartThings or another compatible controller. Gen3 doesn’t offer the same Zigbee path. If Wi-Fi is the plan, that may not matter… but if you want Zigbee as part of your smart home foundation, Gen4 is the better fit.
Installation and motor compatibility
Whichever model you choose, the installation details matter. The Shelly 2PM range is designed for compatible 24V DC / 240V AC wired motors, typically those with separate active wires for both open and close directions. It’s not a universal solution for every blind or shutter motor. Before choosing a controller, you’ll want to confirm the motor type, wiring, voltage, load, switch arrangement and available space behind the wall plate or near the motor.
In Australia, installation of mains-powered devices must be handled by a licensed electrician. That’s not just a safety note (in fact, it is the law!); it also helps ensure the controller is wired correctly, calibrated properly and set up in a way that protects the motor. This is one area where getting advice before buying can save a lot of frustration. A smart blind controller in Australia should match both the motor and the wider smart home system, not just the product listing.
What can you actually automate?
Once your Shelly 2PM roller shutter control is installed and calibrated, the day-to-day benefits are straightforward. You can open bedroom blinds in the morning, close west-facing shutters in the afternoon to reduce heat, lower blinds at sunset for privacy, or close everything when you leave the house. You can even connect blinds with sensors, lighting and climate control, so your home responds more naturally to time of day, temperature and occupancy.
That’s when Shelly 2PM motorised blind control starts to feel less like a gadget and more like part of the house.
Smart roller shutter control with SmartHome
Smart blind and roller shutter automation is one of those categories where the “right” product depends on the wiring, motor, platform and long-term plan. That’s why it helps to buy from a team that works with this gear every day.
SmartHome stocks a wide range of smart roller shutter control products for Australian homes, including Shelly controllers and other smart blind automation options. Whether you’re comparing Shelly 2PM Gen3 vs Gen4, looking specifically for Shelly 2PM Gen4 availability in Australia, or you’re planning a more complete automation setup, the SmartHome team can help you choose the right path before anything goes into the wall.
Start with the motor, choose the right controller, and build the automation around how you actually live… that’s the difference between a smart blind and a smart home. And remember, we are always here to help 🙂
