A wearable biometric sensing ring apparatus for continuous heart rate and blood pressure monitoring having a ring housing for retention on a finger of a user, a photoplethysmograph (PPG) sensor disposed within the housing on an interior surface of the ring to contact or be placed adjacent the finger to register a pulse rate of the user, a first electrode and second electrode disposed within the housing on said interior surface of the ring to contact the finger on a first side of the user's body, and a third electrode disposed on an exterior surface of the ring housing to contact a contralateral portion of the user's body. A combination of first, second and third electrodes are configured for obtaining electrocardiogram (ECG) measurements. A controller and programming are provided for receiving analog pulse rate data from the PPG sensor and analog ECG data from the first, second and third electrodes, converting the analog pulse rate data and ECG data into digital data, calculating one or more of heart rate (HR), heart rate variability (HRV) and blood pressure (BP) from a combination of the digital ECG and PPG sensor data, and graphically outputting one or more of the calculated HR, HRV and BP.
