The Apple Watch Series 10 improves on our favorite smartwatch with a bigger screen and new sleep health tracking, though not everyone needs to rush out and upgrade.

The newest device delivers the most usable screen space on an Apple Watch. Make the most of it with the best Apple Watch Series 10 faces.

Both Watch models should get the same rated 18-hour usage under similar conditions. Apple rates the GPS + Cellular model at 14 hours of Wi-Fi (connected to an iPhone) and 4 hours over an LTE connection. But don't assume that you'll get 14 hours of LTE usage on a GPS + Cellular model.

The Apple Watch Series 10 is available right now on Amazon. If you’re specifically interested in the 46 mm jet black casing with the black sports band, well then great news. You can get it for $30 off at just $399.

Just like the iPhone X, the Apple Watch Series X—as it was rumored to be called—was expected to mark a major milestone for Apple’s decade-old wearable. It was rumored to bring radical changes, including a new flatter design with a much thinner case along with a new magnetic band attachment mechanism.

The new Apple Watch Series 10 features a larger display, thinner profile, and faster charging for those who want round-the-clock battery life. Consumer Reports reviews the model.

The newly released Apple Watch Series 10 is already on sale from Amazon, with the wearable device's GPS, 46mm model down to just $399 following a $30 discount.