Most Mobile Devices also have capabilities for fitness-related metrics such as distance walked or run, calorie consumption.
The amount of data being collected by Electronic Fitness Device is enormous.
Electronic Fitness Devices and Mobile Devices data combined provide a near real-time stress test.
There are many, many Electronic Fitness Device available and in use today from many manufactures. However the data from Electronic Fitness Devices are generally in data that is not accessible to the individual (ie Patient) so that abnomolies and be added to the Patient's Personal Health Record.
Several vendors have created Health information portals with limited success. Much of the issues are related to difficulty in integration of the data.