Mini temperature and lighting control panel?

I’m planning a rewire & smart home upgrade, and I’d like to use hardwired radiator actuators, but that means I’ll need some other device for temperature sensing and user temperature input.

So I’m after a mini wifi control panel. The perfect unit would have a sensor to read the temperature, allow the user to set a target temperature, and have a couple of buttons or switches for lighting control, and replace a UK light switch (typically 86mm square with screw holes left and right spaced 60.3mm)

Does such a thing exist off the shelf?

If not there are plenty of other ways I could solve this problem, but this appeals to me as a very clean, user-friendly and low-maintenance way to do this.