A wearable biometric measurement device includes a ring body having interior and exterior surfaces, an electrocardiogram component including first and second electrodes wherein a single lead electrocardiogram is formed upon contact with the first electrode and the second electrode, a pulse oximeter component including a light emitter and a photodetector wherein the photodetector receives one or more signals transmitted by the light emitter, and a communication component. A system for measuring and processing biometric data includes a wearable biometric measurement device, a monitor device, and a server. A method for measuring biometric data using a wearable biometric measurement device includes pre-processing biometric signals, feature extraction on the signals, and event prediction with respect to the signals.
