Don't want a smartwatch or fitness tracker? Consider a smart ring. These are the best smart rings available, including Oura Ring alternatives.

Ultrarunner Elaine Stypula died after collapsing while competing in the Hardrock 100 race in Colorado on July 11. The cause of death has not been disclosed.

The company's latest smartwatches look sharp, but the first-of-their-kind health tools could be what makes them most compelling.