Shelly

Shelly i4 Gen3 WiFi Smart 4-Digital inputs Controller of Shelly Relays Home Automation Compatible with Alexa Google Home

4.6(98)
$16.99

65+ bought in the past month

About this item

  • Shelly i4 Gen3 provides control over four digital inputs, enabling you to manually activate or deactivate scenes, synchronize actions, and execute complex triggers. Instantly manage devices, control lights, close blinds, and trigger scenes—all from a single location. Additionally, it functions as a Bluetooth gateway, expanding your smart home connectivity. With its compact design, the Shelly i4 Gen3 fits behind most wall switches and installs in under 10 minutes, making it a seamless retrofit for any standard four-button switch.
  • Effortless Device Control - Shelly i4 Gen3 provides manual control over your Shelly devices from a single location. Easily turn off lights, close blinds, operate the garage door, and more, with up to 16 different actions at your fingertips. Enjoy seamless control and convenience right from your home.
  • Instant Scene Activation - Forgot to turn off the lights before bed? No problem! With Shelly i4 Gen3, activate a "Bedtime" scene with just one touch. Effortlessly turn off lights, close blinds, and engage the security system—all from the comfort of your bed.
  • Shelly Customer Service - Shelly is one of the fastest-growing Smart Home brands in the world with devices, providing solutions for the automation of private homes, buildings and businesses. We provide our customers with professional support and a 3 years device warranty.
  • Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation.
$16.99

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Product details
Connector TypeQuick Connect
Contact MaterialSilver
Contact TypeNormally Open
Mounting TypeWall Mount
BrandShelly

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Customer reviews

4.698 ratings
  1. 5★88%
  2. 4★0%
  3. 3★0%
  4. 2★0%
  5. 1★13%
★★★★★

Amazing, small and powerful

JG44070—February 5, 2026✓ Verified purchase

Easy to set up, has email capability, using it as a relay input to broadcast alarm. Does much more that just that. Recommend Read more

★★★★★

Exactly what it is

Grant S.—November 2, 2025✓ Verified purchase

Great product for a very specific purpose, to trigger *other* Shelly relays, but device has no "dry contacts" of its own, just to be clear. Embedded in my wall of my garage, using momentary rocker switches, it makes for the perfect solution to trigger the Shelly relays that control my garage door openers. Read more

★★★★★

Great product. Easy to integrate and program

Pickle—November 3, 2025✓ Verified purchase

Great product. Easy to integrate and program Read more

★★★★★

Easy Home Assistant Integration for Automation

Toros—September 6, 2025✓ Verified purchase

I used this for a project for Home Assistant to detect fire and smoke from this alarm. It works exactly as expected, super easy with the Shelley App Read more

Review image 1Review image 2Review image 3
★★★★★

Wo

Barry—September 6, 2025✓ Verified purchase

Very nice much smaller then I thought it would be Read more

★★★★★

Great little device

Greg Powers—April 19, 2025✓ Verified purchase

Great little device. It allows you to connect a momentary light switch that can trigger an event within Home Assistant. Read more

★★★★★

Small enough to fit in a typical box

DL Thompson—May 3, 2025✓ Verified purchase

Works well Read more

★☆☆☆☆

Turns on lights on all lights in middle of night

Musser Family—December 25, 2024✓ Verified purchase

Darn thing updates or something in woke me up at 3am so I switched to 7am and it does it at 7am now junk Read more

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