And, voilà — sleep apnea detection is now set up on your Apple Watch. To learn even more about the condition, head back to the Browse tab in your iPhone's Health app and select Respiratory health.

Once in the Watch app on your iPhone, scroll down until you see 'Sleep.' Go ahead and tap the icon to change your sleep tracking settings. Within the sleep menu, ensure that the toggle for 'Track ...

I recommend these features and settings to everyone who's just set up a new Apple Watch or wants to get more out of the one already on their wrist.

Mirroring an Apple Watch to your iPhone might at first sound redundant. What can you do on an iPhone that you can’t on an Apple Watch? The feature, available in Settings > Accessibility > Apple Watch ...

I am someone who is borderline obsessed with monitoring my health and fitness data. I use a smart scale, a calorie- and nutrient-tracking app, smart workout equipment, and my beloved Apple Watch to ...

The latest health-tracking feature on the Apple Watch has life-changing implications. Here's how to turn it on, and how it works.