The Ultra 3 touts 42 hours of battery life, off-grid satellite messaging and the biggest Apple Watch screen to date. It’s also $800. Here’s why I’m still upgrading.

The Apple Watch Series 5 starts at $399, and is available in many other versions at various prices. Here's a guide to each model's cost and features.

Follow ZDNET: Add us as a preferred source on Google. Apple's Hypertension Detection feature could be the reason you learn about your high blood pressure. The feature is available on the latest lineup ...