Cardiovascular disease is the most common cause of death worldwide, causing more than 17.3 million deaths worldwide and being the cause behind 31.5% of all deaths and 45% of all deaths for non-contagious diseases. There are 570 million people over the world with some kind of heart disease, from which 148 million suffer arrhythmias. Arrhythmias, specifically Atrial Fibrillation (AF), are the first cause of stroke, the leading cause of death in women and second in men, and the cause of many cases of disability and dependence. Detecting arrhythmias in time is crucial for preventing its effects, but until now it is a very difficult and expensive process. To prevent this, we have developed a non-invasive and comfortable smartband device capable of detecting arrhythmias in real-time 24/7 combining both photoplethysmography (PPG) and electrocardiogram (ECG) monitors. And since what we want is to help the more people, beyond our own wearable device, Rithmi is also a cloud platform (AFib) where other wearable manufacturers can connect and use our algorithms under license to detect Atrial Fibrillation.