Thanks for sharing! Thought I'd help answer:
CorSense continuously measures pulse waveform, heart rate, and R-R intervals while you are using it. These are reported in real-time to a connected app, such as Elite HRV.
There are some limitations to waveform analysis from the fingertip as compared to multi-lead ECG/EKG, but with the right sensor array and firmware/software signal enhancing algorithms you can get a very solid reading of pulse waveform and R-R interval detection.
To ejain's comment: The CorSense is also capable of measuring pulse oximetry, but it is designed first for accurate pulse waveform detection for use in Heart Rate Variability (HRV) analysis, which is a very different animal and requires an extreme degree of accuracy.
The CorSense can measure pulse ox, but a regular pulse ox cannot facilitate the measurement accurate HRV.
Happy to explain further, but there is a ton of info now on the KS page: https://elitehrv.com/corsense
We've been answering questions there consistently throughout the campaign and have also done some live Q&A sessions. Hope this helps!