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Your phone can use tiny skin-colour changes to measure your heart rate (feeds.nature.com)

2026-06-03 | by Thompson | get Samsung Galaxy Watch Series → | tags: heart rate, skin-color changes, smartphone sensors

Phyphox – Physical Experiments Using a Smartphone (news.ycombinator.com)

2026-04-12 | by Sebastian Staacks | get Smartphone Sensor Experiment Kit → | tags: phyphox, smartphone sensors, german physical society

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