Fitness
Optical HR Skin Tone Bias
Optical HR skin tone bias is higher error in PPG sensors on darker skin or tattoos when manufacturers under-test LED penetration and motion filtering—tight fit and newer multi-wavelength hardware help but do not eliminate gaps. Validate with manual pulse checks or chest straps during key sessions.
Optical HR skin tone bias is higher error in PPG sensors on darker skin or tattoos when manufacturers under-test LED penetration and motion filtering—tight fit and newer multi-wavelength hardware help but do not eliminate gaps. Validate with manual pulse checks or chest straps during key sessions.
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