Breath and heart rate, highly used during the recent Covid emergency, are among the first vital parameters of clinical interest. They can provide lots of information about a person's state of health. Their continuous monitoring will be a sector of great interest in the next decades by companies operating in various fields, mostly in healthcare (home monitoring, elderly patients, or for sleep analysis). According to the latest report by the WHO (World Health Organization), the world population is aging, thanks to the advancements in medicine, leading to an increase in geriatric diseases related to breathing and the cardiovascular system. Nowadays, monitoring breath and heart rate technologies are mainly wearable, and based on electrodes or contact sensors.