Samsung just revealed more details about its upcoming smart glasses, including battery life

Samsung's upcoming smart glasses will last nine hours per charge, but they come with a case for more juice.

Samsung&#39;s upcoming smart glasses will last nine hours per charge, but they come with a case for more juice.<p><img src="https://www.engadget.com/img/gallery/samsung-just-revealed-more-details-about-its-upcoming-smart-glasses-including-battery-life/intro-1784741226.jpg" /></p>