Are you fed up with Rob ter Horsts smartwatches which are only of limited use for medical & research applications?

Last Updated on June 19, 2026 by pg@petergamma.org

As we have demonstrated in your review about papers about smartwatch accuracy:

090. Review of Accuracy Studies of Consumer Grade Heart Rate Monitors: Methods, Testing Protocols, Reference Devices

Use a device which is based on the AD8232 ECG chip, the ADS1115 16 bit A/D converter & an
ESP32 instead – the building blocks for a multi-channel ECG device for medical & research applications:

The AD8232 ECG chip, the ADS1115 16 bit A/D converter & an Arduino microcontroller – the building blocks for a multi-channel ECG device for medical & research grade applications