The Series 10 is also the thinnest Apple Watch ever. It's 9.7 millimeters thick, while the Series 9 is 10.7 millimeters thick. That's about a 10% difference.

The best October Prime Day 2024 smartwatch deals include savings on the new Apple Watch Series 10, the Series 9, Garmins, and more top options.

Another way in which the Series 10 beats the Ultra is charging time, and this is something that's worth expanding on. Apple says that the Series 10 can charge from 0 to 80 percent in just 30 minutes (as opposed to older models which achieve the same feat in 45 minutes, whereas the Ultra models get there in an hour).

Commentary: The Series 10 and Ultra 2 are incredibly similar making it hard to know which one to buy. Here's everything you need to know about screens, design, battery and health tracking between Apple's latest watches.

This Samsung Galaxy Watch 6 44mm is the perfect way to track your fitness journey. It has a massive suite of features, and it's down to just $190 in Amazon's October Prime Day sales.

The best October Prime Day 2024 smartwatch deals include savings on the new Apple Watch Series 10, the Ultra 2, and more top options.

Amazon has become a leader in the refurbished electronics market and their renewed products have earned a reputation for reliability and quality. The iPhone 12 deal has surged to become the best-selling item in the renewed category during this Prime Day event.