The use of mobile phones has grown exponentially in the last decade including in some of the most remote and low-resource regions of the world. The use of mobile technology in health care is known as mHealth. mHealth interventions are being used internationally to improve maternal and child health. Be it the use of a mobile phone to call for emergency transport, remote consultation, or large-scale short message service (SMS)-based community education programs, mHealth is demonstrating its utility in reproductive health programs throughout the world. This article describes the evolution and challenges of mHealth, discusses the role of mHealth in achieving Millennium Development Goals 4 and 5, and addresses the potential impact of mHealth for midwives