What’s better than a regular wristwatch? Maybe a solar one that can charge your smartphone. The Uvolt Watch has a solar panel that passively captures energy from the sun. There is also a battery that stores the energy for future use. You can use it to recharge your phone.
Uvolt has a removable power unit with either a Lightning or USB-C connector. The charging dock for it can recharge it under 45 minutes. Like what you see? You may want to support this project on Kickstarter.