Garmin's 'Varia Vision' headset is the Google Glass of cycling
 

The thing about cycling is that it's only as complicated a pastime as you make it. An $80 Huffy performs the same basic function as a carbon-fiber street racer costing 100 times more, just with a lesser degree of effectiveness. Similarly, you can go...

http://www.engadget.com/2016/04/30/garmin-varia-vision/