Experts say current cuffless methods for measuring blood pressure, like the tech found in Samsung Galaxy Watch, can only reliably track relative changes in BP (Nicole Wetsman/The Verge)

Nicole Wetsman / The Verge:
Experts say current cuffless methods for measuring blood pressure, like the tech found in Samsung Galaxy Watch, can only reliably track relative changes in BP  —  It's been over two years since Samsung first announced that its Galaxy Watch would be able to measure people's blood pressure.