About Shelly
Shelly is one of the fastest-growing IoT brands in the world, specializing in smart relays, switches, dimmers, and sensors that retrofit into existing electrical installations. Founded in 2004 as Allterco in Sofia, Bulgaria, Shelly Group has expanded to over 100 markets with devices that install behind standard wall switches and outlets.
Unlike most smart home brands, Shelly devices support local control without cloud dependency, have a fully open REST and MQTT API, and integrate natively with Home Assistant, openHAB, and other automation platforms. This makes Shelly the preferred choice for advanced smart home enthusiasts and professionals who demand reliability and customization.
Key Features
- Local Control Without Cloud
- Open REST & MQTT API
- Retrofits Behind Existing Switches
- Energy Monitoring Built-In
- Home Assistant Native Integration
- Matter Protocol Support
- Compact Design Fits Electrical Boxes
- No Subscription Required
Why Choose Shelly?
Shelly devices offer what no other smart home brand provides: true local control with zero cloud dependency, a fully open REST and MQTT API, and the ability to retrofit behind existing switches without changing your wall plates.
Their compact relays fit inside standard electrical boxes, making any dumb switch smart without visible changes to your home. With native Home Assistant integration, Matter support on newer models, energy monitoring capabilities, and prices starting under $15, Shelly is the gold standard for anyone building a serious, customizable, and privacy-respecting smart home automation system.
Featured Products from Shelly
Shelly 1 Gen3, WiFi & Matter Smart Relay Switch with Dry Contacts, 1-Channel 16A, Alexa, Home Assistant, SmartThings & Google Home Compatible, DIY Smart Automation, Garage Door Opener, No hub required
Shelly 1 Gen4 | Wi-Fi, Zigbee & Matter Smart Relay Switch with Dry Contacts, 1-Channel 16A | Home Automation | Alexa, SmartThings, Google Home, Apple HomeKit Compatible | Garage Door Opener
Shelly 1 Mini Gen3, WiFi & Matter Smart Relay Switch with Dry Contacts, 1-Channel 8A, Compatible with Alexa, Home Assistant, SmartThings & Google Home, DYI, Garage Door Opener, No Hub Required
Shelly 1 Mini Gen4 | Wi-Fi, Zigbee & Matter Smart Relay Switch with Dry Contacts, 1-Channel 8A | Home Automation | Alexa, SmartThings, Google Home, Apple HomeKit Compatible | Garage Door Opener
Shelly 1PM Gen3 | WiFi Smart Relay Switch with Power Metering, 1-Channel 16A | Home Automation | Compatible with Alexa & Google Home | iOS Android App | No Hub | Wireless Lighting Control
Shelly 1PM Gen4 | Wi-Fi, Zigbee, Matter Smart Relay Switch with Power Metering, 1-Channel 16A | Home Automation | Alexa, Google Home, Apple HomeKit Compatible | iOS Android App | No Hub
Shelly 1PM Gen4 | Wi-Fi, Zigbee, Matter Smart Relay Switch with Power Metering, 1-Channel 16A | Home Automation | Alexa, SmartThings, Google Home, Apple HomeKit Compatible | iOS Android App (2 Pack)
Shelly 1PM Mini Gen3 | WiFi Smart Switch Relay, 1 Channel 8A with Power Measurement | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required (2 Pack)
Shelly 1PM Mini Gen3 | WiFi Smart Switch Relay, 1 Channel 8A with Power Measurement | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | iOS Android App | No Hub Required
Shelly 1PM Mini Gen4 | Wi-Fi, Zigbee, Matter Smart Relay Switch with Power Metering, 1-Channel 8A | Home Automation | Alexa, SmartThings, Google Home, Apple HomeKit Compatible | iOS Android App
Shelly 1PM Mini Gen4 | Wi-Fi, Zigbee, Matter Smart Relay Switch with Power Metering, 1-Channel 8A | Home Automation | Alexa, SmartThings, Google, Apple HomeKit Compatible | iOS Android App (2 Pack)
Shelly 2PM Gen3 | WiFi 2-Channel Smart Relay Switch with Power Metering | Home Automation | Roller Shutters, Blinds, Gates Control | Remote Control | Alexa & Google Home | iOS Android App
Shelly 2PM Gen4 | Wi-Fi, Zigbee & Matter 2-Channel Smart Relay Switch with Power Metering | Home Automation | Alexa, SmartThings, Google Home, Apple HomeKit Compatible | Roller Shutters Control
Shelly DALI Dimmer Gen3 | WiFi Smart Dimming | Home Automation | LED Control Gear | BLE Gateway | Smart Schedules | Compatible with Alexa & Google Home | iOS Android App | No Hub Required
Shelly Dimmer 0/1-10V PM Gen3 | WiFi Smart Dimming with Power Monitoring | Home Automation | Compatible with Alexa & Google Home | iOS Android App | No Hub Required
Shelly Dimmer Gen4 US UL, WiFi, Matter, Bluetooth, Zigbee Smart Dimming, Compatible with Matter, Home Assistant, Alexa, Google Home, HomeKit, Support LED Strips & Lamps, No Hub Required, Easy Control
Shelly PM Mini Gen3 | WiFi Smart Power Meter 1 Channel 16 A | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | iOS Android App | No Hub Required | Smart Schedules
Shelly Plus 1PM UL | WiFi Smart Relay Switch with Power Metering Function | Bluetooth Gateway | Home Automation | Compatible with Alexa & Google Home | No Hub | Wireless Lighting Control
Shelly Plus 1PM | WiFi Smart Relay Switch with Power Metering | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | iOS Android App | No Hub | Wireless Lighting Control
Shelly Plus Wall Dimmer UL | WiFi Smart Wall Dimmer Switch | Home Automation | Bluetooth Gateway | Compatible with Alexa, Home Assistant & Google | No Hub Required | Dimmable Lights (2 Pack)
Shelly Plus Wall Dimmer UL | WiFi Smart Wall Dimmer Switch | Home Automation | Bluetooth Gateway | Compatible with Alexa, Home Assistant & Google | No Hub Required | Dimmable Lights (4 Pack)
Shelly Plus Wall Dimmer UL | WiFi Smart Wall Dimmer Switch | Home Automation | Bluetooth Gateway | Compatible with Alexa, Home Assistant & Google | No Hub | Timer Schedule | Dimmable Lights
Shelly Pro 1 | Wi-Fi & LAN, 1-Channel Smart Relay Switch | Home Automation | Bluetooth Gateway | Compatible with Alexa & Google Home | No Hub Required | Remote Control | Timer Schedule | Dry Contacts
Shelly Pro 2 | Wi-Fi & LAN, 2-Channel Smart Relay | Home & Facility Automation | Compatible with Alexa & Google Home | iOS Android App | Lights Automation | Controller for Motorized Valve
Shelly Pro Dimmer 0/1-10V PM | Wi-Fi & LAN Smart Dimmer with Power Metering | Home Automation | DIN Rail | Compatible with Alexa & Google Home | iOS Android App | No Hub | Dimmable Lights
Shelly Pro Dimmer 2PM | Wi-Fi & LAN 2-Channel Smart Dimmer with Power Metering | Home Automation | Bluetooth Gateway | DIN Rail | Compatible with Alexa & Google Home | Dimmable Lights
Shelly Wave Pro 2 US | Z-Wave 2-Channel Smart Relay Switch with Dry Contacts| DIN-Rail | Home Automation | Z-Wave Repeater | High Compatibility | Easy Installation | iOS Android App
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Is Shelly Worth It?
Shelly is a budget-friendly option in the smart home space, best suited for value-conscious buyers. Key strengths include excellent value for money and broad smart home compatibility.
Best For
- first-time smart home buyers
- budget-friendly upgrades
- multi-ecosystem households
- DIY installers
Key Strengths
- excellent value for money
- broad smart home compatibility
- easy self-installation
- no mandatory subscription fees
Not Ideal For
- users needing advanced features
Limitations
Best Shelly Setups
Shelly for Beginners
Get started with essential smart home features
Shelly Full Setup
Complete your smart home with comprehensive coverage
Shelly for Power Users
Advanced features for automation enthusiasts
Common Shelly Problems and Fixes
Having issues with your Shelly device? Browse our most viewed troubleshooting guides.
Why Does My Shelly Smart Switch Keep Losing WiFi After a Power Outage
Why Is My Shelly Relay Overheating or Tripping the Circuit Breaker?
Why Won't My Shelly Device Reconnect After a Power Outage?
Why Does My Shelly Relay Keep Dropping WiFi or Going Offline
How Do I Back Up and Restore My Shelly Device Settings Before Performing a Factory Reset?
What Users Like and Dislike
Pros
- Local Control Without Cloud
- Open REST & MQTT API
- Retrofits Behind Existing Switches
- works with major smart home platforms
- easy to install without professional help
Cons
- product range may be limited
Compatible With
Connectivity
Additional Info
- Professional Installation Required
- DIY Friendly