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Collecting stress levels 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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Biostrap sensors size compared to an Apple AirPod
Biostrap sensors size compared to an Apple AirPod
Unboxing Biostrap: it comes well packed in a nice box.
Unboxing Biostrap: it comes well packed in a nice box.
The Biostrap PPG sensor is about as thick as a watch
The Biostrap PPG sensor is about as thick as a watch
Charging Biostrap is easy - Battery lasts up to 5 days
Charging Biostrap is easy - Battery lasts up to 5 days
Recovery after an heavy Thursday night can take up to days
Recovery after an heavy Thursday night can take up to days
Biostrap it's pretty much just like a Swatch, light on the wrist because of it's material: rubber and plastic.
Biostrap it's pretty much just like a Swatch, light on the wrist because of it's material: rubber and plastic.

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