[Someone]

Strong consumer protection is one of the core goals of the EU. http://ec.europa.eu/justice/consumer-marketing/index_en.htm: "The Charter of Fundamental Rights and the European treaties since the Single European Act guarantee a high level of consumer protection in the EU. It is also a general objective defined in Article 12 of the Treaty on the Functioning of the EU."

It isn't 6 years throughout the EU and for every product, though. The EU directive (= the text the EU writes that tells member countries what to achieve through their laws) states (paraphrasing a lot) that consumers may expect a device they buy to be what is advertised and to last as long as a typical device of what is advertised lasts (Business-to-business is different; there, it is more 'buyer beware')

As is typical for EU directives, that isn't very specific (partly for the better, as being specific would mean that such directives need to be revised all the time) and only describes a goal, not how to reach it.

Individual countries will vary in how they translate that into law. Apparently, Norway went for a very strong consumer protection.