Description
The Shelly 1 Mini Gen4 is the 2026 flagship of Shelly’s ultra-compact “Mini” line. It is a tiny, one-channel smart switch designed to fit in the most cramped electrical boxes where even the standard Shelly Plus or Gen3 models won’t go.
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The “Gen4” status is a significant leap because it moves away from being “just a Wi-Fi switch” to becoming a Universal Connectivity Hub.
The “Gen4” Superpower: Quad-Protocol
For the first time in the Mini series, you don’t have to choose a specific “version” of the hardware for your ecosystem. The Gen4 supports all four major standards simultaneously:
- Matter-Certified: It works natively with Apple Home, Google Home, Amazon Alexa, and Samsung SmartThings right out of the box.
- Zigbee 3.0: It can join a Zigbee mesh network (like Home Assistant or an Echo Hub) and even acts as a Zigbee Range Extender.
- Wi-Fi 6 (802.11ax): Better stability and less congestion on modern home networks.
- Bluetooth 5.0: Used for “painless” inclusion and acting as a BLE Gateway for Shelly’s battery-powered Bluetooth sensors (BLU line).
Key Specifications
Despite its size, the Gen4 is more powerful than the full-sized relays from just two years ago.
Max Load
| Feature | Specification |
| Dimensions | 29 x 34 x 16 mm (approx. 35% smaller than Plus series) |
| Max Load | 8A at 240V AC (2000W) / 5A at 30V DC |
| Relay Type | Dry Contacts (Potential-free) — Ideal for garage doors or gates |
| Processor | ESP-Shelly-C68F with 8MB Flash Memory |
| Power Monitoring | No (The “1PM” Mini Gen4 has this; the standard “1” does not) |
| Safety | Internal temperature sensor with overheat protection |
Why the “Mini” is better than the “Standard” 1 Gen4
Cramped Boxes: If your wall box is full of thick wires or you have a shallow “European style” box, the Mini is often the only device that will fit without chiseling out the wall.
Inside Appliances: It’s small enough to be tucked inside the base of a lamp, a coffee machine, or a small space heater to make the appliance “smart” internally.
Why the “Standard” 1 Gen4 is still better sometimes
- Higher Amperage: The standard (non-mini) Shelly 1 Gen4 handles 16A, while the Mini is limited to 8A. Do not use the Mini for heavy appliances like washing machines or large heaters.
- DC Powering: The standard Gen4 can be powered by 12V DC or 24-48V DC, whereas the Mini Gen4 is typically AC-only (110-240V).
Summary: Who is this for?
The Shelly 1 Mini Gen4 is for the smart home enthusiast who wants Matter and Zigbee compatibility without the bulk. It is perfect for lighting circuits, garage door triggers, and small appliance automation where space is at a premium.
Note: Whilst the Shelly configuration is mostly DIY, any electrical work must be done by a registered electrical contractor and we recommend Straton Electrical.
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