Shelly Plus 1 UL Relay Alternatives: 6 Similar Picks Compared

How these alternatives differ

SONOFF Mini In-Wall Zigbee Switch

The SONOFF Mini In-Wall Zigbee Switch uses Zigbee connectivity instead of Wi-Fi. This requires an existing Zigbee hub for operation, unlike the Shelly Plus 1 UL which connects directly. It measures 1.3 inches wide, making it slightly more compact than the Shelly. It lacks dry contacts, offering standard relay switching only. You should choose this if you already have a Zigbee hub and need a smaller device for tight electrical boxes. It supports Alexa, Google Home, and SmartThings through the hub. The trade-off is the added complexity of hub management versus the standalone ease of the Shelly.

TREATLIFE Single-Pole Wi-Fi Smart Light Switch

The TREATLIFE Single-Pole Wi-Fi Smart Light Switch is a full-size wall switch, not a hidden relay. It measures 4.84 inches wide, significantly larger than the Shelly Plus 1 UL. It connects via Wi-Fi without a hub, similar to the Shelly. However, it requires a neutral wire and lacks dry contacts. It is designed for basic on/off lighting control rather than general appliance automation. You should pick this if you want a visible wall switch for lights instead of an internal relay. It supports Alexa, Google Home, and SmartThings. The main difference is form factor and application scope, favoring standard lighting circuits over complex wiring projects.

TREATLIFE 3-Way Smart Switch 4-Pack

The TREATLIFE 3-Way Smart Switch 4-Pack is designed for multi-location lighting control, not single-circuit automation. It connects via Wi-Fi without a hub, matching the Shelly Plus 1 UL setup. It requires a neutral wire and lacks dry contacts. The units are full-size wall switches, measuring 4.84 inches wide. This pack includes four units for controlling lights from multiple points. You should choose this for standard lighting circuits requiring 3-way functionality. It supports Alexa, Google Home, and SmartThings. It gives up the compact, hidden installation of the Shelly for the convenience of physical wall switches in multi-location setups.

TREATLIFE Dual-Outlet Smart Dimmer Plug 2-Pack

The TREATLIFE Dual-Outlet Smart Dimmer Plug 2-Pack offers plug-in convenience rather than hardwired installation. It connects via Wi-Fi without a hub, similar to the Shelly Plus 1 UL. It lacks dry contacts and is designed for dimmable lamps. Each unit measures 2.43 inches wide. This 2-pack allows control of two devices simultaneously. You should pick this if you want to automate lamps without electrical wiring. It supports Alexa, Google Home, and SmartThings. It gives up the flexibility of hardwiring appliances for the ease of plugging in devices. It is better for bedroom or living room lighting automation than for garage or irrigation systems.

Meross Mini Wi-Fi Smart Plug

The Meross Mini Wi-Fi Smart Plug is a compact plug-in device, not a hardwired relay. It connects via Wi-Fi without a hub, matching the Shelly Plus 1 UL. It measures 1.5 inches wide, comparable to the Shelly. It lacks dry contacts and is designed for plug-in appliances. It supports Alexa, Apple HomeKit, and SmartThings. You should choose this if you need Apple HomeKit compatibility or want to avoid electrical installation. It is ideal for stacking in tight outlets. It gives up the hardwired flexibility and dry contacts of the Shelly for the simplicity of a standard plug. Remote access may have limitations compared to the Shelly.

TREATLIFE 3-Way Smart Dimmer Switch 2 Pack

The TREATLIFE 3-Way Smart Dimmer Switch 2-Pack provides dimmable control for 3-way circuits. It connects via Wi-Fi without a hub, similar to the Shelly Plus 1 UL. It requires a neutral wire and lacks dry contacts. The units are full-size wall switches, measuring 6.1 inches wide. This 2-pack allows dimming from multiple locations. You should pick this for lighting circuits that require dimming and multi-location control. It supports Alexa and Google Home. It gives up the compact, hidden installation of the Shelly for physical dimmer functionality. It is better for standard lighting automation than for complex appliance or garage door control.

Quick picks

Our 7 picks

1 Best overall

Shelly Plus 1 UL Relay Switch

Best for: single-circuit automation with dry contacts

Smart Home Compatibility

Alexa, SmartThings, Google Home

Hub Requirement

No Hub Required

Connectivity

Wi-Fi, Bluetooth

Switch Function

Relay Switch

Maximum Load

15A

Dimensions

1.65 × 1.46 × 0.63 inches

View on Amazon: Shelly Plus 1 UL Relay Switch Affiliate link

The Shelly Plus 1 UL is a Wi-Fi smart relay switch rated for up to 15A. It features potential-free dry contacts for flexible voltage support and acts as a Bluetooth gateway. This hub-free device fits behind standard wall plates and supports Alexa, Google Home, and SmartThings. It suits users who need to automate garage doors, irrigation, or older appliances without rewiring.

Pros

• UL-certified safety rating for residential use
• Potential-free dry contacts for flexible wiring
• Built-in Bluetooth gateway and Wi-Fi repeater
• No hub required for direct Wi-Fi connection
• Compact 1.46-inch width fits behind wall plates

Cons

• Single channel limits control to one circuit
• No built-in power metering for energy tracking
• Requires neutral wire for standard installation

Good fit if

• You need to automate a garage door or irrigation system
• You want a UL-certified relay for added safety
• You require potential-free contacts for specific voltage needs

Skip if

• You need to monitor energy consumption per device
• You want to control multiple independent circuits
• You are installing in a location without Wi-Fi

Verdict: Shelly Plus 1 UL Smart Relay offers robust automation for single circuits with dry contacts. It is ideal for retrofitting garage doors or irrigation systems where UL certification and flexible wiring matter.

2 Best zigbee

SONOFF Mini In-Wall Zigbee Switch

Best for: tight spaces with existing Zigbee hubs

Smart Home Compatibility

Alexa, Google Home, SmartThings

Hub Requirement

Zigbee Hub Required

Connectivity

Zigbee 3.0

Circuit Type

2-Way

Wiring Requirement

Neutral Wire Required

Dimensions

1.56 × 1.3 × 0.66 inches

View on Amazon: SONOFF Mini In-Wall Zigbee Switch Affiliate link

This SONOFF ZBMINIR2 is a tiny Zigbee 3.0 smart relay designed for in-wall installation. It measures just 1.3 by 0.66 by 1.56 inches, allowing it to fit into small EU-type, 86-type, or 120-type mounting boxes. The device requires a Zigbee hub and works with Alexa, Google Home, and SmartThings. It supports external switches and can control lights as low as 3W without flickering.

Pros

• Zigbee 3.0 connectivity for local control
• Extremely compact 1.3 by 0.66 by 1.56 inch size
• Compatible with Alexa, Google Home, and SmartThings
• Supports external rocker or push-button switches

Cons

• Requires a separate Zigbee hub to function
• No built-in Wi-Fi for direct connection
• Data lists neutral wire requirement, conflicting with no-neutral claims

Good fit if

• You need a relay that fits in a tight electrical box
• You already have a Zigbee hub for your smart home
• You want to use existing physical wall switches with smart control

Skip if

• You only have Wi-Fi and no Zigbee hub
• You need a device with a built-in display
• You prefer a standard single-pole switch replacement

Verdict: SONOFF Zigbee Mini In-Wall Relay fits users with existing Zigbee hubs who need a tiny relay for tight spaces. It offers reliable local control but demands a hub setup.

3 Best budget

TREATLIFE Single-Pole Wi-Fi Smart Light Switch

Best for: basic on/off lighting automation

Smart Home Compatibility

Alexa, Google Home, SmartThings

Hub Requirement

No Hub Required

Connectivity

2.4 GHz Wi-Fi

Wiring Requirement

Neutral Required

Circuit Type

Single Pole

Switch Function

On/Off Switch

View on Amazon: TREATLIFE Single-Pole Wi-Fi Smart Light Switch Affiliate link

The TREATLIFE Smart Light Switch is a single-pole on/off device requiring a neutral wire and 2.4GHz Wi-Fi. It connects to Alexa, Google Home, and SmartThings without a hub. You can control lighting via the Smart Life app or voice commands. It supports scheduling and timers for automation. This switch is designed for standard non-smart bulbs and includes a screwless wall plate for installation.

Pros

• Compatible with Alexa, Google Home, and SmartThings
• No hub required for Wi-Fi connection
• Includes screwless snap-on wall plate
• Supports timer and countdown scheduling

Cons

• Single-pole only; not for 3-way setups
• On/off function only; no dimming
• Requires neutral wire for installation

Good fit if

• You need a simple on/off smart switch
• Your switch box has a neutral wire
• You use Alexa or Google Home

Skip if

• You require 3-way switch configurations
• You need dimming capabilities
• Your Wi-Fi is 5GHz only

Verdict: TREATLIFE Single-Pole Smart Light Switch is a practical option for single-pole circuits with neutral wires. It suits users who need basic on/off control and voice assistant integration without extra hardware.

4 Also great

TREATLIFE 3-Way Smart Switch 4-Pack

Best for: multi-location on/off lighting control

Smart Home Compatibility

Alexa, Google Home, SmartThings

Hub Requirement

No Hub Required

Connectivity

Wi-Fi 2.4 GHz

Wiring Requirement

Neutral Required

Circuit Type

Single Pole, 3-Way

Switch Function

On/Off Switch

View on Amazon: TREATLIFE 3-Way Smart Switch 4-Pack Affiliate link

This 4-pack of TREATLIFE 3-way smart switches offers multi-location control without a hub. It connects via 2.4GHz Wi-Fi and works with Alexa, Google Home, and SmartThings. Each switch handles up to 1250W and 10A. You need a neutral wire for installation. The set includes screwless wall plates. It suits homes needing reliable on/off control from multiple points.

Pros

• Supports 3-way and single-pole wiring configurations
• No hub required for setup
• Compatible with Alexa, Google Home, and SmartThings
• Includes four switches and screwless wall plates

Cons

• Requires a neutral wire for installation
• Only supports 2.4GHz Wi-Fi networks
• Does not support Apple HomeKit

Good fit if

• You need to control lights from two locations
• Your home has neutral wires in the switch box
• You use Alexa or Google Home for automation

Skip if

• You require 5GHz Wi-Fi connectivity
• You need dimming functionality
• Your switch box lacks a neutral wire

Verdict: TREATLIFE 3-Way Smart Switch 4 Pack provides reliable multi-location control for standard lighting circuits. It fits users who need simple on/off switching from multiple points and have neutral wires available.

5 Also great

TREATLIFE Dual-Outlet Smart Dimmer Plug 2-Pack

Best for: controlling two dimmable lamps via voice

Smart Home Compatibility

Alexa, Google Home, SmartThings

Hub Requirement

No Hub Required

Connectivity

2.4GHz

Switch Function

Dimmer

Maximum Load

150W LED/CFL, 300W Halogen/Incandescent

Dimensions

3.43 × 2.43 × 2.01 inches

View on Amazon: TREATLIFE Dual-Outlet Smart Dimmer Plug 2-Pack Affiliate link

This 2-pack dimmable smart plug offers 0% to 100% brightness control for compatible lamps. It connects via 2.4GHz Wi-Fi without a hub. You can use voice commands with Alexa, Google Home, or SmartThings. The unit features dual outlets and sunrise simulation settings. It supports up to 150W for LED or CFL bulbs. This option suits users needing multiple dimmable points in one purchase.

Pros

• Dimmable from 0% to 100% brightness
• Works with Alexa, Google Home, and SmartThings
• No hub required for setup
• Includes sunrise and sunset simulation modes
• Dual outlets in one compact unit

Cons

• Only supports 2.4GHz Wi-Fi networks
• Not suitable for high-wattage incandescent bulbs over 300W
• Limited to dimmable LED, CFL, and halogen loads

Good fit if

• You need to dim multiple lamps simultaneously
• You want voice control without extra hardware
• You prefer a 2-pack for better value

Skip if

• You require 5GHz Wi-Fi connectivity
• You need to control hardwired ceiling lights
• You want to dim non-dimmable bulbs

Verdict: TREATLIFE 2-Pack Dimmable Smart Plug fits users who need to control two dimmable lamps at once using voice commands. It is a practical solution for bedroom or living room lighting automation.

6 Best apple homekit

Meross Mini Wi-Fi Smart Plug

Best for: Apple HomeKit users needing compact outlets

Smart Home Compatibility

Apple HomeKit, Alexa, Google Assistant

Hub Requirement

No Hub Needed

Connectivity

2.4GHz Wi-Fi

Maximum Load

15A

Dimensions

2.68 × 1.5 × 2.28 inches

View on Amazon: Meross Mini Wi-Fi Smart Plug Affiliate link

The Meross MSS110 is a compact smart plug supporting Apple HomeKit, Alexa, and Google Assistant. It connects via 2.4GHz Wi-Fi without a hub. The unit handles up to 15A and measures 1.5 by 2.28 by 2.68 inches. Its small footprint allows stacking two plugs in one outlet. You get remote control through an Apple bridge and voice commands. It includes scheduling and sunrise settings for automated control.

Pros

• Supports Apple HomeKit, Alexa, and Google Assistant
• Compact design allows stacking two units per outlet
• Handles up to 15A maximum load
• No hub required for 2.4GHz Wi-Fi connection

Cons

• Requires a HomePod, Apple TV, or iPad for remote access outside the home
• Bridge device must remain online to maintain remote functionality
• Limited to 2.4GHz Wi-Fi networks only

Good fit if

• You use Apple HomeKit and have a compatible bridge device
• You need a compact plug that allows stacking
• You want voice control via Siri, Alexa, or Google Assistant

Skip if

• You need remote control without a dedicated Apple bridge
• You only have 5GHz Wi-Fi networks available
• You require a smart plug with power metering

Verdict: Meross MSS110 HomeKit Mini Plug fits users who already own an Apple bridge device and need a space-saving plug for their HomeKit ecosystem. It is a solid option for stacking in tight outlets, provided you accept the remote access limitations.

7 Best premium

TREATLIFE 3-Way Smart Dimmer Switch 2 Pack

Best for: 3-way dimming with Alexa or Google Home

Smart Home Compatibility

Alexa, Google Home

Hub Requirement

No Hub Required

Connectivity

2.4GHz Wi-Fi

Wiring Requirement

Neutral Required

Circuit Type

3-Way, Single Pole

Switch Function

Dimmer

View on Amazon: TREATLIFE 3-Way Smart Dimmer Switch 2 Pack Affiliate link

This TREATLIFE dimmer offers 1% to 100% brightness control via 2.4GHz Wi-Fi. It requires a neutral wire and works with Alexa and Google Home. You install one smart switch and keep the other as a standard 3-way switch. It supports up to 150W LED loads. This setup is ideal for homes where you want dimming without replacing both switches in a circuit.

Pros

• 1% to 100% smooth brightness adjustment
• Works with Alexa and Google Home
• No hub required for Wi-Fi connection
• Memory function retains last brightness setting

Cons

• Requires neutral wire for installation
• Does not support Apple HomeKit
• Only compatible with 2.4GHz Wi-Fi

Good fit if

• You need dimming for a 3-way circuit
• You use Alexa or Google Home
• Your switch box has a neutral wire

Skip if

• You require Apple HomeKit support
• Your home lacks a neutral wire
• You need 5GHz Wi-Fi connectivity

Verdict: TREATLIFE 3-Way Smart Dimmer Switch 2-Pack suits users wanting dimmable 3-way control with voice assistants who have neutral wires available. It fits those avoiding hub setups.

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