Shelly i4 Gen3 WiFi Smart 4-Digital Inputs Controller, No Hub Required

Price: $19.99
(as of Oct 12, 2026 11:22:51 UTC – Details)
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Hello, we are Shelly – one of the fastest-growing EU-based IoT brands. For us, it’s not about the size of your cart, it’s about helping you live smarter and better.

We offer…

Multi-protocol ConnectivityOpen and Flexible EcosystemNo Hub Needed! Local and Remote controlFree Shelly App (+ Premium for advanced features)Products tailored to fit US standards and dedicated local team

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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.
Compatible with Alexa, Google Home, Home Assistant – Connect your Shelly device to Amazon Alexa, Google Home, Home Assistant, Samsung SmartThings, and other smart home platforms. Control lights and appliances with voice commands, create automations, schedules, and scenes, and manage your smart home from anywhere.
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 is one of the fastest-growing Smart Home brands, offering automation solutions for homes, buildings, and businesses. Device include a 3-year warranty and professional support. With the Shelly Smart Control App, you can configure and manage devices remotely, get real-time notifications, and create personalized scenes by combining Shelly devices to trigger automated actions across your smart home.