Shelly 1 Mini Gen3

The Shelly 1 Mini Gen3 is an incredibly compact WiFi smart relay that fits inside electrical boxes behind existing switches. This tiny device measures just 36x32x16mm yet provides full smart switching capabilities for lights, appliances, and other loads up to 8A. The design philosophy prioritizes retrofitting existing installations without visible changes to your home.

The relay connects to your WiFi network for cloud and local control, with an optional Bluetooth mode for initial setup without network access. The local REST API and MQTT support enable advanced integrations independent of cloud services. Detached switch mode allows the wall switch to trigger automations rather than directly controlling the load.

Shelly devices excel in Home Assistant setups with native local API integration, while also supporting Amazon Alexa and Google Home through Shelly's cloud. The Shelly app provides scheduling, timers, and scene creation. The combination of tiny size, local control options, and broad compatibility makes the 1 Mini Gen3 a favorite among DIY smart home enthusiasts.