Pre-orders are now open for the new Apple Watch Series 10 smartwatch. Here's why we think you'll want to buy it.

Most Apple Watch Series 10 owners won't run into issues but there are a few problems that are being reported by users.

However, if I give an accurate reading for a workout, and I’m not trying my hardest each session, in 28 days I’m going to get a Training Load readout that shows I’m wasting my time and hard-earned money in the gym making no progress at all.

While there are tons of things to be excited about on the new wearable, some of our favorite things about the Apple Watch 10 are its new health and fitness features. A brand new AI engine powers new features like sleep apnea detection, along with more accurate crash and fall detection and exercise tracking.

CNET spoke with Apple's Deidre Caldbeck and Matt Bianchi about the Apple Watch's newest health tracking feature, which took 11,000-plus nights to perfect.

CNBC's Andrew Ross Sorkin reports on the latest news.

AI isn't the only focus Apple has in its latest era. It's making strides in health, too. Here are the two health outcomes it's aiming to help with its newest features.