[tarikjn]

Something I'd like to add, what's greatly missing in the bicycle world to me is a smart bicycle helmet. My current setup involves:

  * Bell Muni helmet
  * with rear and front flea lights
  * front GoPro
  * jawbone which falls all the time
  * Rudy project glasses with chromatic lenses

We're already talking about over $500 and 4 different batteries.

I have seen some attempts at smart bike helmets, but none doing it right.

Also, I second that the rear proximity sensors and haptic feedback are likely to be a gimmick, I would drop the navigational indicators and place a built-in anti-theft tracker instead. Besides they are easily confused with turn signals for a buyer looking at the bike for the first time.

As an experienced San Francisco city rider, rear sensors are a gimmick as you learn to grow eyes on your back and you already see these things, or it is too late. What matters though is a front camera first, rear camera maybe.