Future foldable Samsung phones may have multiple fitness features, the patent suggests

Samsung In the future, foldable phones could have health features similar to a fitness tracking device like a smartband or smartwatch. According to a report by LetsGoDigital, the company has received a patent to develop technology to measure blood pressure and other health indicators with a foldable phone.
According to the patent document, the foldable phone could be used to measure health metrics such as blood pressure, vascular age, aortic pressure waveform, stress, degree of fatigue, and more. It turns out that Samsung could use an inward-folding display design similar to that Galaxy Z Flip and Galaxy Z Fold 2 for technology. The health sensors on such devices can be placed both inside and outside the fold.
In one of the images of the patent document, two sensors can be seen, which are arranged in the lower part of the flexible screen. To obtain health parameters, one can either place the index finger on one or both sensors. The phone takes a picture, converts the pixel intensity to pulse wave amplitude, and gathers information using an amplitude conversion model.

Image Credit: LetsGoDigital

Image Credit: LetsGoDigital
The device should also be equipped with support to calculate the pressure exerted by the finger. To measure the pressure, users have to place their finger between the two foldable displays. In this case, the data is displayed on the cover display of the phone.
Alternatively, Samsung can also place the sensors on the outer surface of the foldable phone. In this case, measurements are taken by pressing the palm of the hand against the device.

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