In late 2025, Sweden remains a global leader in the voluntary adoption of subdermal microchip implants, with an estimated 6,000 citizens now "chipped". While the trend peaked between 2014 and 2016, a steady stream of tech enthusiasts and employees at innovation hubs continue to swap physical keys and cards for rice-sized implants. The Tech Behind the Skin The implants primarily use NFC (Near Field Communication) or RFID technology, the same systems found in contactless credit cards and pet micro