It might not seem as safe as a helmet, but the Hövding 3 Urban Cyclist Airbag may, in fact, be safer. Reading your movements 200 times per second, this airbag inflates in the event of an accident. When it detects that an accident has occurred, it inflates around your neck and head in just 0.1 seconds. And when you connect this airbag helmet to your smartphone using Bluetooth, it automatically notifies emergency contacts. Additionally, this feature tells you the bicycle..