heart rate monitoring medical apparatus; heartbeat measuring apparatus; heart rate monitoring apparatus; electrocardiogram (ECG) measuring devices in the nature of medical devices for measuring vital signs via electrocardiogram (ECG) signals; wearable medical patches for measuring electrocardiogram (ECG) signals, namely, medical bioelectronic devices being bioelectrochemical biosensors; medical electrode patches for measuring electrocardiogram (ECG) signals, namely, cardiac electrodes; wearable medical devices for monitoring electrocardiogram (ECG) signals, namely, heart monitors; wearable devices for measuring electrocardiogram (ECG) signals for medical purposes, namely, biosensors in the nature of heart monitors for measuring cardiac human health data; wearable medical electrode patches for measuring electrocardiogram (ECG) signals, namely, cardiac electrodes; wireless biometric data signal measuring devices in the nature of wearable torso monitors for medical use; biometric data measuring devices in the nature of wearable heart monitors for medical purposes; diagnostic apparatus for medical purposes, namely, pulse oximeters, stethoscopes, and clinical thermometers; measuring instruments for medical purposes, namely, meters for measuring pulse, thermometers for medical use, and motion testing apparatus for physical rehabilitation; medical apparatus for diagnosing suspected heart attacks; medical diagnostic apparatus and instruments in the nature of wearable monitors used to measure biometric data for medical use with embedded using artificial intelligence software for predicting heart health; diagnostic apparatus and instruments for medical purposes, namely, arterial blood pressure measuring apparatus and instruments, heartbeat measuring apparatus and instruments, and patient sensors for measuring blood properties and respiratory events; in vitro diagnostic devices for medical purposes in the nature of biosensors for detecting infectious diseases; medical apparatus for analysing measured physical vital signals in the body