Physical activities are an essential characteristic for the maintenance of health and fitness of an individual. The advances in microelectronics allowed the development of miniature data acquisition devices that can be used for constant monitoring of human health. This paper presents a study and development of a portable device, using appropriate methods for the acquisition of vital signs and physical character analysis. The development of a non-invasive method where the vital signs are acquired and wirelessly transmitted is presented. The obtained results are reported, presenting the feasibility of the proposed methods and the possible improvements that can be done. The results suggested that the employed techniques are adequate and the developed prototype can be used by physical educators and ordinary people to collect vital signs during physical exercises.