New research from UNICEF Innocenti and Western Sydney University explores the question: what does well-being mean to children in a digital age? This first-phase report prioritises the voices of children, collected through workshops with over 300 children from 13 countries along with analysis of existing survey data from 34,000 children aged 9-17 across 30 countries. As digital technology plays an increasingly important role in children's development, the "Responsible Innovation in Technology for Children" (RITEC) project, co-founded with the LEGO Group and funded by the LEGO Foundation, aims to create practical tools for businesses and governments that will empower them to put the well-being of children at the centre of digital design. This report reveals a newly developed well-being framework for children. Made up of eight child-centric well-being outcomes, the framework is a first step towards helping tech developers and policymakers develop a common understanding of how digital experiences can positively influence aspects of child well-being. The report aims to inform the design of digital products and services used by children, as well as the laws that govern them. [This report was prepared by Western Sydney University.]