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In-wall relays comparisons

Hidden relay modules for making existing switches smarter without replacing every wall control.

Read the buying guide → All in-wall relays →

Standout picks

Strongest overall pick

Shelly 1 Mini Gen3

Shelly · HA: excellent · local: excellent

extremely compact - one of the smallest smart relays available

Product notes →

Also strong on local control

Shelly Plus Wall Dimmer

Owned and reviewed

Shelly · works offline: yes

WiFi dimmer with a local web interface and local API. The native Home Assistant Shelly integration controls it locally with no Shelly Cloud account required.

Why it stands out →

Another easy starting point

Shelly Wave 1PM

Owned and reviewed

Shelly · setup: moderate

Home Assistant users adding local switching plus energy monitoring to a single circuit

See buyer notes →

All in-wall relays, side by side

Filter, sort, and open "More" on any row for what it's best at, setup, power, and cloud posture. Prices are the last verified read where there is one; the rest show a price band.

Showing 15 of 15 Ordered by Home Assistant fit, then local control. Click a column heading to re-sort.

In-wall relays compared: Home Assistant fit, offline behavior, protocols, hub requirement, price, and where to buy.
						Where to buy
Shelly 1 Mini Gen3 Shelly More Best for making any dumb switch smart without replacing the switch itself Standout Tiny Gen3 relay with fully local Shelly integration - hides behind any switch or in any junction box. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Wi-Fi, Bluetooth, Matter	no	budget	Amazon ↗ *
Shelly Plus Wall Dimmer Shelly Owned and reviewed More Best for Home Assistant users who want a local WiFi in-wall dimmer without a Zigbee or Z-Wave coordinator Standout In-wall WiFi dimmer with full local control through the native Home Assistant Shelly integration, no hub needed. Local control excellent Cloud local-first (none) Setup moderate Power mains	excellent	yes	Wi-Fi, Bluetooth	no	$31.50checked Sep 10	Amazon ↗ *
Shelly Wave 1PM Shelly Owned and reviewed More Best for Home Assistant users adding local switching plus energy monitoring to a single circuit Standout Single-channel Z-Wave relay with power metering and Z-Wave Long Range support, fully local via Z-Wave JS. Local control excellent Cloud local-first (none) Setup moderate Power mains	excellent	yes	Z-Wave	yes	$42.99checked Sep 10	Amazon ↗ *
Shelly Wave 1PM Mini Shelly Owned and reviewed More Best for Home Assistant users with an existing Z-Wave network who want compact behind-switch relays Standout Ultra-compact Z-Wave relay with power monitoring that fits behind almost any existing switch. Local control excellent Cloud local-first (none) Setup moderate Power mains	excellent	yes	Z-Wave	yes	mid	Amazon ↗ *
Shelly Wave 2PM Shelly More Best for Home Assistant users who need to control two circuits from one box, like a dual gang switch or two light groups Standout Dual-channel Z-Wave relay with independent power monitoring on each channel. Local control excellent Cloud local-first (none) Setup moderate Power mains	excellent	yes	Z-Wave	yes	$45.99checked Sep 10	Amazon ↗ *
Shelly Wave Pro 1PM Shelly More Best for Home Assistant users who want to control circuits from the electrical panel rather than behind switches Standout DIN-rail mountable Z-Wave relay with power monitoring for panel-level circuit control. Local control excellent Cloud local-first (none) Setup advanced Power mains	excellent	yes	Z-Wave	yes	$105.99checked Sep 10	Amazon ↗ *
SONOFF ZBMINI Extreme SONOFF More Best for older homes without neutral wires that need smart relays Standout No neutral wire required in an ultra-compact Zigbee relay - the smallest no-neutral option available. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Zigbee	yes	budget	Amazon ↗ *
SONOFF ZBMINI-L2 SONOFF More Best for older homes without neutral wires at the switch box Standout No neutral wire required - the key upgrade over the original ZBMINI for older wiring. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Zigbee	yes	$19.90checked Sep 11	Amazon ↗ *
Zooz ZEN16 MultiRelay Zooz More Best for DIY home automation projects needing multiple independent relay controls Standout Three independent dry contact relays in one module. Control a garage door, fireplace, and sprinkler from one device. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Z-Wave	yes	$42.95checked Sep 23	Amazon ↗ *
Zooz ZEN51 Dry Contact Relay Zooz More Best for making existing dumb switches smart without changing the switch plate Standout Tiny behind-the-wall relay that makes any existing switch Z-Wave smart without replacing the switch itself. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Z-Wave	yes	$37.95checked Sep 5	Amazon ↗ *
Zooz ZEN52 Double Relay Zooz More Best for two-gang switch boxes where you want to keep existing switches and add Z-Wave behind them Standout Two independent line-voltage relays in one module. Smart-ify a two-gang box without replacing either switch. Local control excellent Cloud local-first (none) Setup advanced Power hardwired	excellent	yes	Z-Wave	yes	$39.95checked Sep 5	Amazon ↗ *
Shelly 1 Gen4 Shelly More Best for keeping an existing wall switch while putting the circuit it controls under local Home Assistant control Standout A dry-contact in-wall relay that can join Home Assistant over Wi-Fi, Zigbee or Matter - whichever radio profile you set it to at install time. Local control excellent Cloud cloud-tinged (low) Setup advanced Power hardwired	excellent	yes	Wi-Fi, Bluetooth, Zigbee, Matter, MQTT	no	$27.99checked Sep 8	Shelly ↗
Shelly 2PM Gen4 Shelly More Best for controlling and metering two circuits from a single wall box Standout Two independently metered relay channels plus a blinds mode in one in-wall module, joining Home Assistant over Wi-Fi, Zigbee or Matter. Local control excellent Cloud cloud-tinged (low) Setup moderate Power hardwired	excellent	yes	Wi-Fi, Bluetooth, Zigbee, Matter, MQTT	no	$39.99checked Sep 8	Shelly ↗
Shelly Plus 2PM Shelly Discontinued More Best for Home Assistant users who want to control two circuits (lights, fans, etc.) from a single device Standout Two independent relay channels with per-channel power monitoring - control two loads from one device. Local control excellent Cloud local-first (none) Setup moderate Power hardwired	excellent	yes	Wi-Fi, MQTT, Bluetooth	no	budget	Amazon ↗ *
Shelly Plus 1 Shelly Discontinued Owned and reviewed More Best for Home Assistant users who want to smart-enable existing dumb switches Standout Tiny Wi-Fi relay with full local API - hides behind any existing switch plate. Local control excellent Cloud cloud-tinged (low) Setup advanced Power hardwired	excellent	yes	Wi-Fi, MQTT, Bluetooth	no	$42checked Sep 6	Amazon ↗ *