What is it? Acc. to: http://www.ijpe-online.com/article/2019/0973-1318/0973-1318-15-2-591.shtml : „Smart jewelry is a subcategory of wearable devices. Compared with conventional jewelry, smart jewelry has advantages such as beautified appearance, wearability, and practicability. As an emerging category, smart jewelry has attracted much attention from developers and consumers, but it is still at an initial stage of development andWięcej oIntelligent jewellery[…]