Which smart home system is suitable for our new building?

Is this a cloud-based solution?

Radio control via app. In my opinion, affordable and high-quality. Disadvantage: It is tied to the manufacturer.

It doesn't look very promising, for retrofitting e.g. rental apartment ok, but if I'm building new then not a system that is only based on radio. Then you should use something professional.

I am Master of Science IT. I can assess that somehow. With KNX only the electrician earns 20-30 times more in comparison for nicely making slots and laying cables. It's nicely open, but in the end KNX is nothing more than outdated legacy system switch technology. But that's just my personal opinion.

Which frequency does Rademacher use? ISM 868? Encryption? Do they have open APIs (Rest, gRPC, Coap)? Cloud dependency?

Knx way too expensive and overrated. Rademacher Homepilot controls shutters, door contacts, fire alarms, shutters open in emergencies, Hue lamps, heating very cheaply. Everything perfect.

And no socket... only with such an intermediate adapter. Thanks, no thanks.

I am Master of Science IT.

IT != electrical, so a beginner in the field. The name says it all :D

I am a Master of Science IT. I can already assess that somewhere. With KNX, only the electrician earns 20-30 times as much in comparison for nicely making grooves and laying cables. It's nicely open, but in the end KNX is nothing more than outdated legacy system switch technology. But that's just my personal opinion.

An electrical master can definitely also tell you a tall tale about the individual protocols - or assess them somewhere.

The Rademacher stuff is also just an overpriced HomeMatic - which is far more open

And no socket... only with such an intermediate adapter. No thanks.

IT != Electrical, so a beginner in the field. Name says it all :D

what kind of intermediate adapter???

What frequency does Rademacher use? ISM 868? Encryption? Do they have open APIs (Rest, gRPC, Coap)? Cloud mandatory?

An electrician master can surely tell you stories about the individual protocols - or evaluate them somehow.

The Rademacher stuff is just an overpriced HomeMatic - which is much more open

no cloud mandatory.
I can only say that Rademacher 1. is cheap and 2. works perfectly and simply and that also with Philips Hue, Enfy cams, etc. With KNX you need a programmer to remodel everything if you want to change something. For whatever reasons. Here everything direct on the fly in the app. No one forces you to do it. I’m just saying it works. Anyone who has 10,000€++ for KNX for the same result should do so.