eID stands for electronic identification. It’s a digital version of your official ID that you can use online to prove who you are securely. This feature is a system designed to allow citizens to identify themselves online, access government services, sign documents electronically, and verify personal data securely across borders. However, the Xiaomi 15 doesn’t support eID. eID support is governed by specific regional laws and regulations, which can differ between countries. The feature is tailored to local governmental systems, so it is not universally implemented across all devices.