The word smart has been applied to a myriad of common products over the last few years but sometimes these percieved improvements are just dumb. This is not the case in with the Classon Bike Helmet by Brooklyness Inc.
This Kickstarter product has far exceeded its initial goal of $30,000, with nearly $150,000 already pledged. Estimated retail price $599. Here are some of its key features:
BLINDSPOT DETECTION:
Know when cars are approaching, so you can make better decisions on the road. Cameras (front & back) scan the environment. This info is interpreted by our algorithm and communicated to you, using our visor interface. A non-disruptive light under the visor blinks in your peripheral vision as cars are approaching from behind. Light intensity is adjustable.
Intuitive Turn Signals:
Gesture sensors read your natural movements and activate the turning lights. Indicate which way you are turning simply by using your hand signals. The sensors read your movement and activate your turning lights on the right or left side. Turn lights are located in the front and back of the helmet, ensuring that you are visible to others.
Automatic Brake Lights:
Brake lights turn on automatically when you reduce speed. Let those behind you know your intentions just by doing what you would normally do. The integrated accelerometer detects when you are braking and a red light turns on at the back of the helmet. 
Another clever feature of the helmet that is smart in the classical sense is the inclusion of cutout perfect for locking the helmet to your bike!
We here at Unofficial are huge fans of head protection and think any advances in the field deserve attention. Well done Brooklyness Inc. We hope you make bank with this awesome new product!