Tracking sleep patterns with Biostrap

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

The box contains three straps, charging cable, charger and two sensors

Heart rate variability (HRV) as measured and explained by Biostrap

Recovery after an heavy Thursday night can take up to days

Comparing the quality of sleep during two different nights. Being awake more often reduces quality of sleep.

Biostrap iOS app dashboard and daily heart rate

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