Wellue DuoEK Bluetooth ECG Device, Portable Chest Strap, Wireless Heart Health Monitor with Free App for iOS & Android Mobile Phone, Portable 30s - 15 Minutes Recording ECG Monitoring Device : Amazon.de:
7 Best ECG Monitors for Personal Use in 2023
Analysis and postprocessing of ECG or heart rate data from wearable devices beyond the proprietary cloud and app infrastructure of the vendors - ScienceDirect