google prefers url with device=iphone

Hello,

i cant understand why google is putting a www.lutronmilano.it/it/domotica/tende-lutron/index.html?device=iphone ?device=iphone and preferring that instead of letting the browser detection do the job

Most likely indexed mobile page, but not indexed desktop page yet. Be sure, later it will display desktop link, because of all mobile pages contain correct <link rel="canonical" href="/..."> tag.

What query you tested in Google?