9 Data processing apparatus; Smart rings; Wearable computers in the nature of smartwatches; Wearable activity trackers; Wearable video display monitors; Apparatus for recording, transmission, processing and reproduction of sound, images or data; Biometric identification apparatus; Calculating machines and data-processing equipment; Central processing units for processing information, data, sound or images; Computer chipset for use in transmitting data to and from a central processing unit; Computer hardware and recorded software sold as a unit for use with medical patient monitoring equipment, for receiving, processing, transmitting and displaying data; Electric sensors; Memories for data processing equipment; Mobile computing and operating platforms consisting of data transceivers, wireless networks and gateways for collection and management of data; Motion sensors; Recorded computer programs for measuring biometric information; Recorded computer programs for measuring heart beat; Recorded computer programs for detecting atrial fibrillation; Recorded computer programs for measuring heart rate; Recorded computer software for measuring biometric information; Recorded computer software for measuring heart beat; Recorded computer software for detecting atrial fibrillation; Recorded computer software for measuring heart rate