My idea is of a Security fit band. It will be a small device connect via Bluetooth to a smartphone app.  The device will have a little button, when the button is pressed, the fit band will send a signal to the smartphone , sending  a e-mail/text message with the user location to a pre-registered list of people informing that the user is in some kind of dangerous situation.

The challenges that we might face in this project would be:

• Battery of the fit band (need to be small enough and all the time connect to the phone via Bluetooth)
• Develop a mobile application and deal with apple restrictions ( After some research I discover that you can’t send a e-mail without user authorization using apple API, The developers will have to figure out a way around it).