This isn't a product, this is a tech demo. This could very well be the tech that makes foldable phones nice to use rather than watching a crease down a video. Or maybe even a smart bracelet rather than a smart watch. Smart watches are okay and all but their utility is limited due to their size. A smart bracelet could quite easily be 4 or 5 inches wide and wrap around the whole wrist, allowing for a whole variety of applications that are impossible on a smart watch and impractical on a smart phone.

Edit: Or even smart gloves.