Yes, to use this device with the Shelly Smart Control app, a gateway is necessary. Compatible gateways are Shelly BLU Gateway, or alternatively any Shelly Plus, Pro, Gen3 or Gen4 device (excluding sensors) can act as a gateway.
Is it possible to use the device without a hub?
Yes, Shelly devices (except for Wave devices) operate independently without the need for a hub. They connect directly to your Wi-Fi network, and you can control them via the Shelly Smart Control app, web interface, or through integrations with platforms like Google Home, Alexa, Home Assistant and Samsung SmartThings.