The purpose of this project work is to make research on vital sign’s data collection and datapresentation on handheld devices. With the development of smart phones and tablets, more andmore people prefer accomplishing their daily tasks on mobile devices. Additionally, theawareness of personal health care increases at the same time. This report consists of three mainparts: analysis, design and implementation and system evaluation. By studying literature andsearching related works on the internet, general design guidelines are documented. The result isthat a prototype is implemented with the functionalities of data collection and data presentation.The system test and evaluation are also completed.