mCardia is a suite of technologies for cardiovascular (CVD) monitoring and treatment in an ambulatory setting using mobile and wearable technology. The project consists of the following types of technologies and resources: (A) The mCardia mobile & wearable ambulatory ECG/CVD monitoring system; (B) The CACHET Research Platform (CARP) for storing the collected data; (C) The CACHET-CADB which is a first dataset containing ECG and contextual data from 24 patients and over 259 days.