Google Contacts is a feature within Google that allows users to manage their contacts, including email addresses, phone numbers, and physical addresses. It provides various features such as cleaning up or updating contact information, creating groups, looking up contact information for individuals inside an organization, importing and exporting contacts. The service can be accessed through the Gmail interface or directly at contacts.google.com, and its data is synced across devices, including Android phones. Google Contacts offers a range of sections to organize contacts, such as frequently contacted lists, directory listings, labels, and other contact information. It also allows users to create groups by adding labels and importing/exporting contacts from CSV or vCard files.