Biostrap on my wrist

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

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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One month of Biostrap health data

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 wrist PPG sensor next to a Swatch Sistem 51

Biostrap iOS app dashboard and daily heart rate

Unboxing Biostrap: it comes well packed in a nice box.

Biostrap sensors size compared to an Apple AirPod

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