Welcome to the Monitor Deloitte report on Digital Health. This is one of a series of reports reflecting work commissioned by Office of Life Sciences in March 2015 on key healthcare and life science industry segments in the United Kingdom. Digital Health is an emerging industry arising from the intersection of healthcare services, information technology and mobile technology. Digital health innovations are only just starting to be more widely accepted as necessary for the future of efficient healthcare service delivery. As we address the behaviour, social, legal and technical challenges, over time, digital health advances have the potential to help increase access, decrease healthcare system costs and improve health outcomes. This report analyses trends in the digital health industry based on discussions with stakeholders, literature reviews and our work across the sector. It focuses on the United Kingdom but in the context of the global market and draws on examples from other countries. The report considers the challenges to growth, barriers to adoption, shifting dynamics and how the emergent industry is developing. The intention is to provoke discussion and offer readers an overview of the industry challenges and dynamics in the United Kingdom.