Self Powering Cellphone concepts

ModeLabs has developed a trio of concept cellphones that are self-sufficient via normal, everyday use (no video, internet, music?). The YoYo is worn around the neck of the user. It comes with a solar panel as well as a built-in pendulum, relying on both kinetic and solar energy for power.

 

The U-Turn focuses more on the urban professional, boasting a case that must be opened before the keyboard can be used. The action of opening and closing will then generate the power required to power the U-Turn.

 

Last but not least, the Runaway is worn on your wrist or attached to other exercise equipment, using kinetic power generated from movements during the exercise.

Extract from slashgear