Vital signs data are stuck in the past: Nurses take them manually, multiple times per day for 1 billion inpatients annually – which is time-consuming and expensive, quality is uneven, and it is not frequent enough for robust predictions. Rheo replaces manual vital signs measurements in the hospital with a data stream from our upper arm sensors. We can enrich the data stream with predictions and extend monitoring seamlessly to patients’ homes with cellular LTE connectivity Hospitals pay for the data stream with a business case to reduce nurse workload and improve the quality of care