Those who didn’t watch Colin Farrell’s reboot of Total Recall in 2012, I strongly recommend you watching it.  in the movie, which is set in future,  Colin and others in the movie talk to their hand which lights up showing circuits in the shape of a mobile phone.  The next generation of wearables, won’t adorn our body parts, rather would be made of genetic and organic material which will be more functional than fashionable.  Engineers from the Massachusetts Institute of Technology (MIT) have created a new ink from genetically programmed living cells that are engineered to light up in response to a variety of stimuli.

Source: 3D Printed “Living” Tattoo Could be Next-Gen Wearable Device