The investigation of biometric data in the field of sporting activities receives an increasingly important role both in competitive sports as well as in sports medicine. Here in particular small and easily portable measuring instruments such as the Tobii Glasses 2 and the vario port-e come to use, as they do not impair the physical activity by their lightweight and compact form.

Moreover, these products are characterized by their high robustness, in particular the data quality is not reduced by the sporting activity.