Shelly Wave 1 Mini US Review (2026): A Spec-Based Look

What stands out

• Compact dimensions of 1.35 x 1.11 x 0.63 inches fit small switch boxes
• 1-channel, 8 A capacity with dry contacts for small appliances
• Z-Wave Long Range connectivity extends up to 1.5 miles
• Compatible with any Z-Wave gateway for scalable networks up to 4,000 devices

Who it fits

Key specs explained for Shelly

Connectivity: Z-Wave Long Range, Z-Wave Plus

This device supports two wireless standards for home automation. Z-Wave Long Range extends signal distance up to 1.5 miles at full power. This helps you control devices in large properties or detached structures like guest houses. Z-Wave Plus ensures compatibility with older hubs. You benefit from reliable connections where Wi-Fi signals are weak. Compare this with standard Wi-Fi switches that may struggle with distance and interference in larger homes.

Smart Home Compatibility: Z-Wave gateway

You must use a Z-Wave hub to configure and control this switch. It does not connect directly to your Wi-Fi router. This means you need an existing smart home controller or must purchase one separately. This setup supports up to 4,000 devices on a single network. It is ideal for users who already own a compatible hub. Compare this with Wi-Fi switches that connect directly to your internet router without extra hardware.

Capacity: 1-channel, 8 A

This switch controls one electrical circuit with a maximum load of 8 amps. This rating suits most standard indoor lighting and small appliances. It can handle loads for locks, garage door openers, or irrigation systems. Exceeding this limit may damage the device. You should check the wattage of your connected equipment. Compare this with higher-capacity relays if you plan to control heavy motors or commercial-grade equipment.

Dimensions: 1.35 x 1.11 x 0.63 inches

The compact size allows installation in tight spaces behind existing switches or lamp roses. It fits into small switch boxes that might not accommodate larger smart devices. This makes it easy to upgrade older homes without major electrical work. You can hide the device while maintaining the look of your home. Compare this with bulkier smart switches that require larger junction boxes and more room for wiring connections.

Compact Design and Build Specs

According to the listing, the Shelly Wave 1 Mini US LR Relay Switch measures 1.35 inches in width, 1.11 inches in height, and 0.63 inches in length. These dimensions define its physical footprint. The device is described as the world's smallest Z-Wave Long Range smart switch. Its compact form factor allows it to fit behind standard switches or lamp roses. This small size is critical for users with limited space in small switch boxes. You can install it in tight enclosures where larger smart devices would not fit.

The unit features dry contacts and a 1-channel, 8 A capacity. This electrical specification determines what you can connect to it. You can use it to automate small appliances, locks, garage doors, irrigation systems, and lights. The design supports remote control of these devices without requiring extra wiring. The listing notes that a gateway is not included. You must provide a Z-Wave gateway to configure the device. This requirement affects your initial setup process.

Shelly provides a 3-year device warranty with this product. This coverage applies to the hardware itself. The listing also mentions professional support from the brand. The physical build focuses on fitting into existing infrastructure. You do not need to modify your home's wiring structure to accommodate this relay. The small size ensures it remains hidden once installed.

Setup and everyday use

You must pair this switch with a Z-Wave gateway to configure it. The listing notes that a smart hub is not included. You need to select a compatible gateway before installation. The device supports both Z-Wave Long Range and Z-Wave Plus standards. This allows it to communicate on 912MHz and 908.4MHz frequencies. Z-Wave Long Range extends signal distance up to 1.5 miles at full power. This range helps you control devices in large properties or detached structures. The network can scale to support up to 4,000 devices. This capacity far exceeds the 232-device limit of earlier Z-Wave versions. Daily use involves automating small appliances and lights. The 1-channel, 8 A capacity handles loads for locks, garage doors, and irrigation systems. Dry contacts provide flexible wiring options for these applications. You can set custom schedules or adjust lights manually. The device fits behind standard switch plates or lamp roses. Its compact size makes it suitable for small switch boxes. You can create smart scenes to trigger multiple actions. For example, opening a gate can turn on driveway lights. Extended-range connectivity ensures responsive lighting in guest houses or outdoor kitchens. You do not need extra wiring for these setups. The system adjusts automatically with sunset times. This keeps your home warmly lit when occupied. Shelly provides professional support for configuration questions. You have access to customer service if you encounter setup issues. The device operates reliably within your chosen Z-Wave ecosystem. You control it through your gateway’s interface. No additional apps or hubs are required beyond your main controller.

Before You Buy This Relay

You must pair this device with a Z-Wave gateway. The listing states that a hub is not included. You need to verify your existing controller supports Z-Wave Long Range or Z-Wave Plus. This ensures reliable communication up to 1.5 miles. Check that your network can handle up to 4,000 devices if you plan to scale your system. The compact size fits behind standard switches or lamp roses. It suits small appliances like locks or irrigation. Ensure your switch box has enough space for its 1.35 by 1.11 by 0.63 inch dimensions. This relay works alongside other smart controls. It does not replace a thermostat. It adds automation to lighting and doors. Confirm your gateway software allows scene creation. You will need to set schedules for sunset synchronization. Regular updates keep the connection stable. This unit complements broader home automation rather than standing alone.

Check before you buy

• Verify your Z-Wave gateway supports Long Range and Plus.
• Confirm your switch box fits the 1.35 inch width.
• Check if your hub allows scene and schedule creation.
• Ensure your network supports up to 4,000 devices.
• Confirm the gateway is compatible with 912MHz frequencies.

The product at a glance

1

Shelly Wave 1 Mini US LR Relay Switch

Best for: Large properties with tight switch spaces

Connectivity

Z-Wave Long Range, Z-Wave Plus

Smart Home Compatibility

Alexa, Google Home, SmartThings

Dimensions

0.63 × 1.35 × 1.11 inches

View on Amazon: Shelly Wave 1 Mini US LR Relay Switch Affiliate link

The Shelly Wave 1 Mini LR is a compact 1-channel smart switch relay rated for 8 A. It uses Z-Wave Long Range for connections up to 1.5 miles and supports networks of 4,000 devices. Its small size fits behind standard switches. You need a separate Z-Wave gateway to configure it. This unit suits users managing large properties or complex automation scenes.

Pros

• Z-Wave Long Range connectivity reaches 1.5 miles
• Supports scalable networks with up to 4,000 devices
• Compact dimensions of 1.35 x 1.11 x 0.63 inches
• Includes a 3-year device warranty

Cons

• Requires a separate Z-Wave gateway for setup
• Limited to 8 A capacity per channel
• Only includes one channel of control

Good fit if

• You need extended range for large properties
• You are building a large Z-Wave network
• You have tight spaces behind switches

Skip if

• You do not own a Z-Wave gateway
• You need more than one channel
• You require higher than 8 A capacity

Verdict: Shelly Wave 1 Mini LR 8A Switch fits users with large properties who need reliable long-range control. It works well for tight spaces but requires a separate hub.

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