Shelly Plus 1 Mini Gen3

Quick verdict

The Shelly Plus 1 Mini Gen3 is the go-to tiny relay for local-first smart homes. It fits behind virtually any switch plate, integrates instantly with Home Assistant via the native Shelly integration, and needs zero cloud. Gen3 brings improved hardware over previous generations. If you want to make dumb switches smart without replacing them, this is the way to do it.

Standout: Tiny Gen3 relay with fully local Shelly integration — hides behind any switch or in any junction box.

Last checked: 2026-03-25

Compatibility snapshot

Why it stands out

• extremely compact — one of the smallest smart relays available
• excellent local control via native Shelly Home Assistant integration
• versatile — works with lights, fans, garage doors, or any on/off load

Reasons to hesitate

• no dimming — on/off relay only
• Wi-Fi based, so no Zigbee or Z-Wave mesh benefits
• requires basic electrical knowledge for installation

Best for

• making any dumb switch smart without replacing the switch itself
• Shelly ecosystem users wanting the smallest possible relay

Avoid if

• you need dimming capability — look at the Shelly Dimmer instead
• you're not comfortable with in-wall wiring

Privacy and local-control notes

Fully local via the native Shelly Home Assistant integration. No cloud account needed. Shelly's local API (HTTP/RPC) provides complete control without any external dependency.

Home Assistant support: supported · integration path: shelly.

Buying reality check

Price notes: Very affordable. Available from shelly.com and various retailers.

Compare side by side: see relay comparisons →