Apple is exploring ways to turn future smart glasses and headsets into health and fitness devices, building on the company’s growing focus on wearables. Smart glasses offer a different opportunity because they are designed to be worn more naturally throughout the day. AdvertisementThis approach could help Apple compete in a growing smart glasses market where companies are adding artificial intelligence and wearable features. But reducing camera functionality could also limit some of the advanced AI and fitness features that make smart glasses attractive. Also read: Discover five ways the Apple Watch uses health and fitness features to help users monitor their well-being.