Light sensors on wearables struggle with dark skin and obesity #WearableWednesday

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It is vital to consider all bodies when developing any wearable device. A new study brings to light some major problems in current tech. Via The Verge:

Light sensors used to track heart rate in wearable devices like the Apple Watch Series 5 and the Fitbit Versa 2 don’t work as well on darker skin or people with obesity, according to modeling done in a new study.

That’s a problem for features currently built into devices — but it’s also a bad sign for efforts to use light sensors for new applications in wearables, like monitoring blood pressure, says study author Jessica Ramella-Roman, an associate professor studying bioimaging sensors at Florida International University.

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