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Blood pressure tracking could be the next big thing on a future Fitbit device
Patent details have leaked hinting at a non-invasive way to do this.
In fact, previous rumors indicate that the company could be working on a smart ring that would be built to track blood pressure, glucose, lipids, hemoglobin, and your diet, along with other fitness metrics. "The filing describes a system where sensors press against the skin and detect small mechanical changes caused by blood moving through the arteries," the publication added. This would have to work in tandem with the usual PPG sensors that smartwatches have that use light to measure blood flow and pressure.
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