Seabear-Diving, a startup company from Graz Austria, recently published their work on implementing a smart sensor system that is able to measure the blood pressure of divers during their underwater trips. It continuously records depth, time, heart rate, oxygen saturation (SO2) and plethysmogram. Seabear-Diving has specialized on underwater, diver supporting technologies, such as Apnea Dive Computers or Head-Mounted Displays for diving masks. Their main research interest lies within smart underwater sensor systems for measuring medical aspects and diving physiology. A patented OLED-based touch screen allows divers to easily operate their smart dive computers as they would handle a smartphone. For details refer to their research papers here.