Despite the longer time smartphones have been available on the consumer market, they are still very limited concerning touchscreen interaction options. Compared to the classic PC, accessing additional options provided by the operating system, is only slowly feasible. To remove this unfamiliar constraint, this thesis addresses to finger distinction, while interacting with the smartphone to add known options e.g. a right click and also additional options to the smartphone. Distinguishing fingers should be achieved evaluating data provided by a wristband with capacitive sensors, which is worn while interacting with the smartphone. The attachment of the electrodes to the arm, the developed software to collect data, a study conducted using the developed software and the evaluation of the collected data are part of this thesis. Based on the results, options are presented, which could improve the user experience on the smartphone.