The same argument I make against smartwatches: they are great for people who regularly wear the dumb version, but uncomfortable for people who don't.
Smartphones became ubiquous quickly because by the year 2007 almost everyone was used to having a cellphone in their pocket, smart or not. Personally, I find regular sun/glasses uncomfortable and I don't see myself ever buying smart ones.
Smartphones became ubiquous quickly because by the year 2007 almost everyone was used to having a cellphone in their pocket, smart or not. Personally, I find regular sun/glasses uncomfortable and I don't see myself ever buying smart ones.