INKBIRD which one and where do i buy?

I am looking for a new sous vide and i since Anova seem to have killed their reputation with the subscription suff, I am looking at INKBIRD, which brings me to my questions.

Should i get the 200 or 300?

And where do i even buy it from?

Since INKBIRD seem to have an Amazon page, an Aliexpress page and a website on which for some reason all three sous vide machines are priced at the same 100 dollars.

Also is eu.inkbird.com official?