Jenax spoke today at CES 2019 alongside medical companies Philips, Johnson & Johnson, and others, about how their J. Flex flexible battery allows designers to focus on the use-case and comfort of the device, rather than figuring out where to fit a bulky battery.
https://www.notebookcheck.net/Jenax-promotes-the-benefits-of-their-flexible-battery-to-the-medical-wearable-industry.387881.0.html