Hannu Kinnunen is responsible for the science of ŌURA ring (www.ouraring.com). He has 20 years of experience in wearables; before joining the founding team of ŌURA he was a Principal Scientist at Polar (www.polar.com/uk-en). Hannu was behind most of the physiology related algorithms used in Polar heart rate monitors and activity trackers, and he is credited in dozens of patents and scientific articles relating to heart rate based signal processing, biosignal detection, and analysis of activity, training, recovery and sleep. Hannu has created the algorithms of the ŌURA ring and been in the central role of creating the product concept. He has MSc. in Biophysics.