This paper describes design and implementation of android ECG application that works together with the VS100, a wearable Vitalsens bluetooth ECG monitoring device. The main objective of the thesis was to discover development in the android Platform and produce a prototype ECG application. The thesis was commissioned to Domuset Oy; Oulu based wireless health Solutions Company.

The theoretical part of this paper discusses the android platform, its architecture and the devel-opment environment and tools that are used in android mobile application development. Basic components and procedures of android application development are described in the development process. The Vitalsens VS100 device is also explained in this part of the thesis. Emphasis was given on implementing bluetooth API to communicate with the Vitalsens device.

Tools that were used in the development included Eclipse, Android SDK, ADT plugin for Eclipse.

The result of the thesis project was an application that communicates with the Vitalsens device via bluetooth connection. The research process can be extended to a design of efficient and reli-able application that can be used with the vitalsens, Vs100 device. The thesis can be used as a reference to carry out further developments in android mobile health care solutions.