Apple

Apple and Google are developing smartphone technology to help fight the coronavirus pandemic. But public health authorities in some states are chafing against the tech giants' rules.

As its iPhone sales growth slows, Apple has been expanding its presence in health care, where privacy matters. Apple's privacy values could give it an edge, if the company lives up to them.

The focus heading into Apple's event was on its new iPhones, but it also unveiled a redesigned Apple Watch with a sensor allowing users to take an electrocardiogram they can share with their doctor.

Apple says it's working with a startup to automatically share the locations of iPhone users with 911 operators in an emergency. Only 911 centers will have access to the information, Apple said.