Can wearable devices be helpful? Absolutely. But they can also be horrid. It all depends upon whether we use them to focus and augment our activities or to distract. It is up to us, and up to those who create these new wearable wonders to decide which it is to be.
Closing paragraph of my essay on Wearable technologies for the magazine Technology Review. (Available at www.technologyreview.com/news/517346/the-paradox-of-wearable-technologies/)