When i bought this (2 years ago) the "link" version could be controlled remotely by a mobile app & had interesting with Alexa/Google. The version without the "link" just had an IR remote control.

However, I think now all of the models come with this functionality.
I think the Hot + Cool on galaxus which is 250chf more expensive is the newer model as the price is the same as on the Dyson.ch website.