An ergonomically designed wireless wearable smart band pair for continuous ECG monitoring is disclosed. The pair comprises primary and secondary smart bands with integrated electrodes that are provided with switches for enabling desired electrodes during data acquisition. When the smart bands are worn around the two limbs, electrodes contact the skin. The primary smart band sets all possible states of the electrode switches and acquires biopotential data from the first wrist while the secondary smart band simultaneously acquires biopotential data from the second wrist and sends it wirelessly to the primary smart band. The primary smart band processes biopotential data via digital and analog signal conditioning and fuses information to acquire high-fidelity ECG data as per Einthoven's law without need for completing a circuit via leads and/or holding auxiliary electrodes. The primary smart band analyzes ECG data in real-time, generates pertinent alarms, stores data locally, and wirelessly transmits information to external devices.