See the Samsung Galaxy S5's heart rate monitor in action

Jessica is a passionate content strategist and team leader across the CNET family of brands. She leads a number of teams, including commerce, performance optimization and the copy desk. Her CNET career began in 2006, testing desktop and mobile software for Download.com and CNET, including the first iPhone and Android apps and operating systems. She continued to review, report on and write a wide range of commentary and analysis on all things phones, with an emphasis on the iPhone and Samsung devices. Jessica was one of the first people in the world to test, review and report on foldable phones and 5G wireless speeds. Jessica began her leadership role managing CNET's How To section for tips and FAQs in 2019, guiding coverage of topics ranging from personal finance to phones to home. She holds an MA with Distinction from the University of Warwick in the UK.