The adoption of smart glasses has been, to say the least, disappointing. But smartglasses-makers haven't given up, as this year's CES conference showed. Could persistence win the battle this time around?

Many tech giants and experts believe that we will see a decline in present-day smartphones within the next decade. Smartphones will be challenged by a wide range of wearable gadgets and smart systems which provide new, convenient ways to communicate and enjoy the benefits of the digital world.