
Move aside, Big Tech.
If 2017 was the year technology giants like Apple set their sights on the $3.5 trillion U.S. health care market, 2020 is shaping up to be the year in which a new set of entrants join the race. Retail and telecom giants including AT&T, Best Buy, and Walmart are turning key assets like wireless networks, mobile workers, and foot traffic into health care tools.