"There are a few reasons it's important to be aware of how much time in daylight you're getting," Cheung explains. "For adults, research shows that spending around 20 minutes outdoors every day has both physical and mental health benefits, including providing essential vitamin D and even boosting your mood."

While Apple first launched its watch in 2015, sales didn’t spike until the pandemic, when consumers were highly focused on their health. But competitors quickly caught up, with fitness-focused companies like Garmin integrating more smart technology.