I was measured by David Ripp at Adult nationals last year and all that is written on the measurement card he gave me is the length of each foot in MM and the size boot I need, but nothing about width. Even the Edea site does not mention different widths, at least for men's boots.
I tried on a Chorus, which was very uncomfortable right out of the box but he assured me spot heat molding would fix that, and an Ice Fly which felt like a form fitted slipper right out of the box. I don't know if those were different widths or if the basic construction and/or last is different. If I had the money and the skill level to justify an Ice Fly I would have walked out with a pair.
In spite of Edea's claim (echoed by David Ripp) that you can't overboot with an Edea, my coach, who does not skate in Edea's, and several skaters that do have Ice Fly's, an Ice Fly is definitely wayyyy too much boot for a pre-bronze/bronze level skater, not to mention the cost.