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Measuring HRV with Biostrap

Wearing a clinical-grade photoplethysmography (PPG) sensor for a month

Nov. 15, 2017 -

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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Biostrap sensors size compared to an Apple AirPod
Biostrap sensors size compared to an Apple AirPod
One month of Biostrap health data
One month of Biostrap health data
The Biostrap wrist PPG sensor next to a Swatch Sistem 51
The Biostrap wrist PPG sensor next to a Swatch Sistem 51
Recovery after an heavy Thursday night can take up to days
Recovery after an heavy Thursday night can take up to days
On the bottom you can see the two red LED's and the PPG sensor. Just like the Swatch Sistem51 movement this is hidden when worn on wrist
On the bottom you can see the two red LED's and the PPG sensor. Just like the Swatch Sistem51 movement this is hidden when worn on wrist
The Biostrap PPG sensor is about as thick as a watch
The Biostrap PPG sensor is about as thick as a watch

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