Many smartwatches (even smartbands) can measure your heart rate, but very few can measure blood pressure. That's because to measure blood pressure, you need a tight-fitting band that presses into your hand uncomfortably. A patent shows that Samsung may have figured out a way to make the measurement with a light sensor similar to the heart rate sensors. The patent drawings show a watch, called Samsung Gear X (not to be confused with Gear IconX). The design shown is similar to the original Gear watches and we're pretty sure it's just a placeholder (same for the name). The way...
Source: https://www.gsmarena.com/samsung_patents_a_way_for_smartwatches_to_measure_blood_pressure-news-29636.php
