Shelly Wave 1PM Mini

Quick verdict

The smallest Z-Wave relay Shelly makes, and it includes power monitoring. Fits behind existing switches in tight boxes, reports energy usage per circuit, and runs entirely local through Z-Wave JS in Home Assistant. You need a Z-Wave controller, but if you already have one, this is one of the best compact relay options available.

Standout: Ultra-compact Z-Wave relay with power monitoring that fits behind almost any existing switch.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• extremely compact and fits inside most EU and US switch boxes behind existing switches
• built-in power monitoring lets you track consumption per circuit
• Z-Wave mesh reliability with no WiFi congestion

Reasons to hesitate

• requires a Z-Wave controller (USB stick or hub) on your Home Assistant instance
• no native Matter or Thread support, locked to Z-Wave ecosystem
• no direct voice assistant integration, must go through Home Assistant

Best for

• Home Assistant users with an existing Z-Wave network who want compact behind-switch relays
• anyone who wants reliable local control with power monitoring in a tiny package

Avoid if

• you do not already have a Z-Wave controller and do not want to buy one
• you want direct Apple Home, Google Home, or Alexa integration without Home Assistant

Privacy and local-control notes

Fully local via Z-Wave. No cloud, no internet needed. Power monitoring data stays on your network.

Home Assistant support: supported · integration path: Z-Wave JS.

Buying reality check

Price notes: Mid-range pricing for a Z-Wave relay. The built-in power monitoring adds value compared to basic relay modules.

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