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Tracking oxygen saturation with Biostrap

Tracking down the effects of alcohol usage

Nov. 15, 2017 - Willem L. Middelkoop

Most wearables (smartwatches, fitness trackers, etc.) use very basic sensors to capture heart rate. Their signal is binary: just counting beats. Biostrap is different, instead of just checking pulses, it captures a high-fidelity PPG waveform. These waveforms are the same kind that doctors use, making me wonder what I could learn from them!

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The Biostrap wrist PPG sensor next to a Swatch Sistem 51
The Biostrap wrist PPG sensor next to a Swatch Sistem 51
The Biostrap PPG sensor is about as thick as a watch
The Biostrap PPG sensor is about as thick as a watch
Recovery after an heavy Thursday night can take up to days
Recovery after an heavy Thursday night can take up to days
Charging Biostrap is easy - Battery lasts up to 5 days
Charging Biostrap is easy - Battery lasts up to 5 days
Comparing the quality of sleep during two different nights. Being awake more often reduces quality of sleep.
Comparing the quality of sleep during two different nights. Being awake more often reduces quality of sleep.
Apple HealthKit aggregating data from different sources and devices
Apple HealthKit aggregating data from different sources and devices

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