Thinking of upgrading your Apple Watch? Or trying to figure out which Apple Watch to buy? We've got your answers.

It's easy to pick up your iPhone for five minutes, and suddenly, an hour is gone from scrolling through content. An Apple Watch can receive important notifications from your phone without you being distracted by other apps. The Apple Watch does not have a web browser, so you can stay more focused without missing important messages or alerts.

Macworld Apple unveiled the Apple Watch ten years ago last September, prompting the rumour mill to speculate about an anniversary watch—just like the iPhone X once was. The Apple Watch X was supposed to feature a new magnetic wristband system that could free up more space in the case for the battery and other modules.

Apple has redefined what a watch can do. We talked to Apple’s top brains and other experts about the promises and perils of using wearables to optimize your health.