No, these use 2.4 GHz WiFi.
Most routers in the UK that run 5GHz will also run 2.4GHz so you can connect your socket or adaptor by connecting to the 2.4GHz WiFi.
Many dual-band routers work intelligently and will connect your devices to the most appropriate available frequency.
If your router does not do this, you can manually split the bands on your router settings and choose to connect these to the 2.4GHz frequency.
You will then need to give your 5GHz and 2.4GHz bands different names to differentiate them.
Please contact your WiFi provider if you need help with your router configuration settings.
You need to ensure that your phone is also connected to the 2.4GHz network when installing your device.