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Blood pressure readings on the Apple Watch are one step closer to becoming a reality.

Blood pressure readings on the Apple Watch are one step closer to becoming a reality.

, by raj, 7 min reading time

After one of Apple's hardware partners revealed successful trials of their sensor technology, blood pressure tracking on the Apple Watch is one step closer to reality. Rockley Photonics, a health sensor business that already counts Apple among its clients, has created an infrared (IR) spectrophotometer-based sensor technology that can measure blood pressure non-invasively, according to the firm. It has been conducting its own in-house pilot human research in order to do a bigger investigation on the technology's possibilities.Optical PPG sensors are used in devices like the Samsung Galaxy Watch 4, but they must be calibrated with a cuff monitor to get accurate blood pressure readings. The Rockley pilot research included 40 volunteers who used a photonics-based sensor that was worn on the wrist and recorded over 480 total measurements. The results, according to the business, revealed a significant connection with cuff blood pressure measurements as a control. Rockley thinks it has the ability to measure a variety of additional indicators, including core body temperature, body hydration, alcohol, lactate, and glucose, and already has partnerships with major worldwide manufacturers, including six of the top 10 companies in the wearable industry. The WIRB-Copernicus Group Institutional Review Board (WCG IRB) approved this blood pressure investigation, which also demonstrated that Rockley's photonics sensor functioned well when measuring heart rate and heart rate variability when compared to ECG equipment. If Rockley can replicate the better link with a traditional blood pressure monitor in a bigger trial, it will be huge news for the wearable industry. Samsung smartwatches now employ the PPG optical sensor to capture blood pressure measurements, however, the sensor requires cuff calibration to get the same level of accuracy as conventional monitors. A slew of wearable companies has already committed to providing non-invasive blood pressure monitoring.

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