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Last updated July 2026

Shelly Smart Plug UL

4.4
111 ratings
Launch Year: 2025

Model: Plug US Gen4

$24.99
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Our review

Shelly Smart Plug UL Review: Hub-Free Automation With Real Energy Monitoring

A Wi-Fi, Bluetooth and Matter-ready smart plug that logs power use and keeps its schedules running with no hub or cloud required, though its full Zigbee toolkit still favors the Shelly app over Home Assistant.

The verdict

The Shelly Smart Plug UL is built for buyers who want serious control over a single outlet: it tracks real-time energy use, runs schedules and automations locally without needing Wi-Fi to keep working, and connects to Google Home, Alexa, Apple Home and Home Assistant out of the box. Most owners praise the build quality and the flexibility of the Shelly app, though a handful of reviewers ran into a frustrating first-time Wi-Fi pairing process. For anyone monitoring a modem, pump, or appliance and wanting automations that survive an internet outage, it is a standout choice at a fair price for what it offers.

Best for
  • Home automation enthusiasts
  • Energy-usage trackers
  • Home Assistant and Matter users
  • Remote-cabin or off-grid setups

Pros

  • Real-time and historical energy monitoring
  • Local schedules and automations keep running without Wi-Fi or a hub
  • Works with Google Home, Alexa, Apple Home (Matter) and Home Assistant
  • Feature-rich, fluid companion app with AI-assisted automation setup
  • Solid build quality

Cons

  • Zigbee requires a separate Zigbee hub
  • Some advanced automation features are more accessible in the Shelly app than in Home Assistant
  • No USB charging ports
  • Not weather-resistant, indoor use only
  • A few buyers reported a difficult first-time Wi-Fi pairing process

Who is the Shelly Smart Plug UL for?

This plug targets buyers who want more than an on/off switch. Reviewers use it to power-cycle modems and routers automatically when the internet drops, run irrigation pumps on a schedule, and tie a humidity sensor to a dehumidifier, all without an extra hub since it connects directly over 2.4GHz Wi-Fi or Bluetooth. Because its automations and schedules run locally, several owners specifically use it in places with unreliable connectivity, including a remote cabin, since the plug keeps executing its programmed on/off times even without an active Wi-Fi or internet connection.

What buyers love

The most consistent praise is for the built-in energy monitoring, which owners use to track daily, weekly and monthly power draw and to build automations around consumption thresholds, matching the plug's supported energy-monitoring feature. Reviewers also highlight the Shelly app as fluid and packed with granular settings (voltage thresholds, status LED behavior, an in-app assistant that can draft automations from a plain-language request), and several call out solid build quality on this newer generation of the plug. Easy, hub-free setup over Wi-Fi is another recurring theme, with buyers switching over from other smart plug brands and pairing it in minutes.

What to know before you buy

The plug's Zigbee support requires a separate Zigbee hub, and at least one reviewer noted that some of the deeper automation features available on other Shelly devices (like button and LED behaviors) are not yet fully exposed to Home Assistant for this model, so Home Assistant users may need to lean on the Shelly app for the full feature set. One experienced reviewer also reported a difficult initial Wi-Fi pairing process that never completed despite multiple resets, a reminder that first-time setup can occasionally be fiddly. The plug does not include USB charging ports or weather resistance, so it is best kept indoors and paired with a separate charger if USB output is needed.

Is the Shelly Smart Plug UL worth it?

With a 1800W/15A load rating, overheat and overload protection, and support for Google Home, Alexa, Apple Home via Matter and Home Assistant, this plug covers the integrations most smart home users need while adding energy monitoring that budget plugs typically skip. Feedback from owners skews strongly positive, and the combination of local automations, a capable companion app and broad ecosystem support makes it a easy recommendation for anyone who wants a smart plug that does more than flip a switch.

Frequently asked questions

Does the Shelly Smart Plug UL need a hub?

No hub is required for its core Wi-Fi and Bluetooth functions. A separate Zigbee hub is only needed if you want to use its Zigbee radio.

Does it work with Alexa, Google Home and Apple Home?

Yes. It integrates with Google Home, Amazon Alexa and Apple Home (via Matter), plus Home Assistant for advanced local automation.

Can it track energy usage?

Yes, it includes real-time energy monitoring so you can see power draw and consumption history for whatever is plugged in.

Will its schedules keep working if my Wi-Fi goes down?

Yes, buyers report that once schedules and automations are set, the plug keeps executing them locally even without an active internet or Wi-Fi connection.

Does the Shelly Smart Plug UL have USB charging ports?

No, it does not include built-in USB charging ports.

At a glance

Summary

Everything this plug supports, grouped by category.

Power
Overheat/Overload ProtectionEnergy Monitoring
Connectivity
2.4 GHz WiFiBluetoothZigbee (Zigbee Hub required)
Integrations
Google HomeAlexaApple HomeKitHome AssistantMatter
Features
On/Off Button

Price History

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Company
Shelly logo

Shelly

4.4/ 5 avg ratingBulgaria flagHeadquartered in Bulgaria

Shelly, based in Bulgaria, makes compact smart relays, switches, plugs and sensors that fit behind existing wall switches and outlets to automate almost any home wiring. Its devices are popular with advanced users for offering local control, a built-in web interface, MQTT and broad integration with Home Assistant, Alexa and Google Home. Shelly is a favorite for retrofitting smart control without replacing fixtures.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

Dimensions

?

Weight

?

Available in colors

NO

Power
Plug Format

Type B

Maximum Load Power

1800W

Maximum Load Current

15A

Load Voltage

110 - 125V

Overheat/Overload Protection

YES

Energy Monitoring

YES

USB Charging

NO

Connectivity
2.4 GHz WiFi

YES

5 GHz WiFi

NO

Bluetooth

YES

Z-Wave

NO

Zigbee

Zigbee Hub required

Thread Protocol

NO

Integrations
Google Home

YES

Alexa

YES

Apple HomeKit

YES

Via Matter

Samsung SmartThings

?

Home Assistant

YES

IFTTT

?

Matter

YES

Matter-certified

Features
On/Off Button

YES

Zibgee Router

?

Automations

YES

Local automations, timer and schedules; ambient light sensor and multicolor status LED

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