There is a kind of bracelet that can indicate, in addition to heartbeat, if you make arrhythmia (atrial fibrillation). Note that I do not have cellular or tablet. THANKS

Hello, To my knowledge, it will be very difficult to detect atrial fibrillation at home without a sufficiently powerful electronic device. There is a product that can be installed behind a smart phone and can detect fibrillation by placing your fingers on the sensitive plates. Unfortunately, to my knowledge, there is no bracelet that can detect atrial fibrillation without Holter if you do not have a smart phone.