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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
https://github.com/berdosi/HeartBeat
I think I picked up a dedicated unit finger pulse oximeter for like $20.
FWIU Apple Watch is one product with FDA approval as a medical device (ECG Electrocardiogram) for detection of AFib Atrial Fibrillation and Parkinsons.
Medical device design > Pathway to clearance or approval: https://en.wikipedia.org/wiki/Medical_device_design#Pathway_...
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