This product is equipped with a portable heart rate monitor. Users can choose to upload the daily measurement data to the cloud and store it as a historical record for future query. *Disclaimer This app and portable heart rate monitor have no medical purpose and are intended solely for historical record-keeping. They should not be considered as a substitute for professional medical diagnosis. Their design is not intended for the diagnosis of diseases or other symptoms, nor is it suitable for any treatment, relief, medical intervention, or prevention of any symptoms or diseases. Before making any health-related decisions, please consult a qualified healthcare professional.