Future wearable devices will not require you to keep charging them every few hours using a traditional power outlet. How? They will be able to generate energy from your movement. Take this cool idea by 15-year-old Angelo Casimiro:
We are talking about shoes that generate electricity the more you use them. This shoe charger can recharge smartphones and other small gadgets. The instructions for this project are available online. Without getting too technical, let’s just say such an idea could work well for smart apparel of the future.