Consumer tech giants have tipped off the next big trend in the sector. Smart glasses are the product of the future, promising wearers hands-free access to the internet. Companies likeGoogle, Amazon, and Apple have already jumped into the race.Many believe that smart glasses could replace phones in the future. It’s conceivable that these devices could even become the primary means through which we consume digital information and entertainment. The challenge lies in developing prototypes that mainstream consumers can both afford and, more importantly, want to wear (gotta keep that style fresh).