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The Uvolt watch charges your phone with solar power — and without wires

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If you’re a smartphone user who’s frequently on the go, you’ve probably run into this scenario: A dead battery without a power outlet, charger, or extension cable in sight. Sure, you can pick up a portable battery, but they also will eventually run out of juice.

Enter the Uvolt, a rectangular (37 × 37 × 1 mm) analog watch that leverages an anti-reflective solar panel and custom circuit to passively recharge a high-density removable battery. The Uvolt’s 600mAh power pack sports a built-in cable (with one of three connectors — Lightning, Micro USB, or USB Type-C) and wireless tech that’s compatible with inductive chargers. It partially recharges in about 45 minutes and fully recharges in a day, delivering five hours of talk time, or three hours of internet browsing and video streaming.

It’s the brainchild of Antony Diaz, a Montreal native who developed a prototype as part of a high school science project. “We saw the potential, and wanted to transform it into more than a science project,” Diaz said. “We believe design is as important as how it works. When you have a solid structure, beauty falls in place just like gravity.”

In April 2015, Diaz teamed up with investor Marc-Antoine Bonin to turn Uvolt into a business. The two solicited funding from friends and family, recruited a team of engineers, and contracted an industrial firm based in North America to embark on mass production. Through a Kickstarter campaign, they hope to raise enough seed money for a first batch of Uvolt units.

“The reason why we wanted to built a port into the power bank is, you don’t have to carry a cable,” Diaz said. “We wanted to create a watch that’s sleek, not a gadget — something people can use every day when they need to charge their phone. We’re look[ing] for ways to make clean energy accessible through wearable technology. We see a future with accessible, unlimited clean energy, and the Uvolt Watch is our first step to get there.

The Uvolt comes in three editions: A $100 Kickstarter Special with a single watch, power server, wireless charger; a $190 Duo Edition with two watches, power packs, and chargers; and a $360 Family Edition with four watches, batteries, and chargers.

It’s available in black, white, silver, and rose gold, and is projected to ship to U.S. customers in December 2017.

Kyle Wiggers
Former Digital Trends Contributor
Kyle Wiggers is a writer, Web designer, and podcaster with an acute interest in all things tech. When not reviewing gadgets…
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