Mobile health — the use of wireless devices to manage health conditions, collect health data, monitor vital signs, provide clinical decision support and access health information — is in its relatively early stages. Nonetheless, the field has witnessed accelerating growth since 2010 in the U.S. and has become a truly global marketplace. Rising health care costs, the proliferation of mobile devices, affordable sensor technologies and regulatory issues are all factors driving this growth. This research note examines each of those in detail and provides an outlook of the mobile health space over the next five years, including services and players to watch. Companies mentioned in this report include Epocrates, GenoMed and Mobisante. For a full list of companies, and to read the full report, sign up for a free trial.