The early concentration of risk in a child’s life calls for dedicating resources around delivering quality care at the time of birth and weeks after birth. Mobile health, or “mHealth”, addresses the use of mobile and wireless technologies for providing health services and information. Newborn health can be supported by mHealth through referral and tracking of mothers and infants, decision support for CHW, CHW supervision, scheduling and tracking postpartum and postnatal visits, and teaching and counseling for mothers and families, among other uses. These are reviewed in case studies from Afghanistan, India, Malawi and Indonesia. These case studies are framed by a review of implementation issues and external resources for guidance.