Definitions of mHealth

Foundation for the National Institutes of Health (FNIH)
mHealth is “the delivery of healthcare services via mobile communication devices"
www.caroltorgan.com/mhealth-summit/

NIH Consensus Group
“mHealth is the use of mobile and wireless devices to improve health outcomes, healthcare services and health research.”
 

The mHealth Alliance
"mHealth stands for mobile-based or mobile-enhanced solutions that deliver health. The ubiquity of mobile devices in the developed or developing world presents the opportunity to improve health outcomes through the delivery of innovative medical and health services with information and communication technologies to the farthest reaches of the globe."
www.mhealthalliance.org/about/frequently-asked-questions

US Broadband Plan
"The use of mobile networks and devices in supporting e-care. Emphasizes leveraging health-focused applications on general-purpose tools such as smartphones and Short Message Service (SMS) messaging to drive active health participation by consumers and clinicians."
http://download.broadband.gov/plan/national-broadband-plan-chapter-10-health-care.pdf

West Wireless Health
"The delivery of health care services via mobile communication devices such as cell phones. Applications range from targeted text messages to promote healthy behavior to wide-scale alerts about disease outbreaks. The proliferation of cell phones across the globe, even in locales without basic health care infrastructure, is spurring the growth of mHealth in developing countries. Also known as mobile health." (UN Foundation / mHealth Alliance, WWHI)
www.westwirelesshealth.org/index.php/resources/glossary

World Health Organization (WHO)
"Mobile Health (mHealth) is an area of electronic health (eHealth) and it is the provision of health services and information via mobile technologies such as mobile phones and Personal Digital Assistants (PDAs)."
www.who.int/goe/mobile_health/en/