The Apple Watch will get better at tracking health trends over time with its watchOS 6 update, which represents a key area in which Apple's smartwatch was lacking as a fitness tracker.
Among the new features coming in watchOS 6 are capabilities that Fitbit has long offered, such as providing more insight around a user's VO2 max reading and menstrual cycle tracking.
Apple is one of Fitbit's biggest competitors in the United States. With Apple adding more robust fitness features to the Apple...
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