Electronics enthusiasts will never think of the question, "Why do we need a smart watch? They know very well that these electronic gadgets help, make life easier and motivate. Smart watches free your hands and allow you to reduce the amount of unnecessary gestures. While driving, in the subway or bus, on a noisy street, you can not hear the phone ringing, lying in a pocket or bag. And even hearing it, a person driving a car or jammed by the crowd of fellow citizens in public transport, can not always quickly get a smartphone. And what a disappointment it is when you miss an important call or message. No less annoying is the situation when, having turned into a guttapiece acrobat, you pull out the ill-fated smartphone and see that all your efforts were for a message about a promotion from the store. Smart-watch allows you to see all the important information with a single glance on your wrist.