Student from Aalen University in Germany invented an 'airbag' for smartphones
AD case has built-in sensors and eight springs to catch the phone when it falls
Video shows the phone bouncing harmlessly after it is dropped from a height
The phone case is still a prototype, but the designer won the top award from the German Society for Mechatronics and has registered a patent for it
![](https://i.ytimg.com/vi/0So6lSSK1Kc/maxresdefault.jpg)