Yes, 11 is mathematically bigger than 10.
The key difference between the Series 11 and Series 10 screens lies in the glass covering. On the Series 11 aluminum models, Apple uses Ion-X glass, which it claims is twice as scratch-resistant as the glass on previous aluminum versions. The titanium Series 11 uses a sapphire crystal display.
The key change this year, confirmed in our testing, is durability. The aluminum models of the Series 11 (the titanium models retain the same sapphire crystal glass as the Series 10) feature a new Ion-X glass that Apple claims is 2x more scratch-resistant.
The Apple Watch Series 10 is a minor upgrade to the Series 9, which is still a powerful watch that gains plenty of new features on its own with watchOS 11.
Yes, the Apple Watch Series 11 is a solid upgrade, especially for users coming from Series 8 or older. With a 24-hour battery life and improved health features, including sleep tracking and hydration monitoring, it offers practical improvements at the same price point as previous models.
Apple Discontinues Watch Series 10, Ultra 2 and More After Launching New Models.
In terms of RAM capacity, Samsung's S10 comes with 8 GB, which is double the 4 GB on Apple's iPhone 11, resulting in smoother multitasking. But the A13 Bionic processor chip on Apple's smartphone gives it a slight edge in performance over Samsung's Qualcomm Snapdragon 855 processor.
Series 10 is our thinnest watch ever. To make this possible, we re-engineered nearly every aspect of it, including the SiP, Digital Crown, speaker, front crystal, and antenna. It all comes together to create a watch that's packed full of innovation. Series 10 has the largest screen area of any Apple Watch.
Yes, Apple released new watches in 2025: the Apple Watch Series 11, Apple Watch SE (3rd Gen), and Apple Watch Ultra 3, launched in September 2025, bringing features like improved battery, 5G (Series 11/Ultra 3), more durable glass (Series 11), larger displays (Ultra 3/SE 3), and new health insights like sleep scores.
A larger screen and thinner body mark the biggest change to the Apple Watch in years, but you might have to squint to see it.
Bottom Line. While iPhone 11 cases will technically fit the iPhone X and iPhone XS, the updates to the exterior buttons would make using 11 cases for the X frustrating, and these functionality issues will be a deal breaker for most.
Samsung Galaxy S25 Ultra
The S25 Ultra still positions itself as one of the most well-rounded and feature-complete Android phone cameras currently available. However, for S24 Ultra (and even S23 Ultra) users, there is not a huge change in camera hardware to get you to rush out and buy this new model.
How Long Should an Apple Watch Last? Apple designs its products for durability, with most users keeping their Apple Watch for 3-5 years before performance issues or discontinued software updates prompt replacement. Explore Apple Watch Series 10 straps to keep your device fresh.
The blood oxygen monitoring feature on Apple Watch Series 9, Series 10 and Apple Watch Ultra 2 will return with a software update to be released on Aug. 14. Blood oxygen monitoring returns to Apple Watch Series 9 and newer.
The iPhone 11 may date back to 2019, but its design, processor, and camera performance still hold up well in 2025. It's now the most affordable route into Apple's ecosystem without compromising the basics of build quality, smooth performance, or photographic reliability.
The Apple Watch Series 11 offers modest upgrades over the Series 10, primarily enhanced durability with more scratch-resistant glass, optional 5G cellular, slightly improved battery estimates (though real-world difference is small), new colors (Space Gray), and exclusive launch features like Sleep Score and Hypertension Alerts (which might come to Series 10 via software). Performance and design are similar, using the same S10 chip, making the Series 10 a great value if you're upgrading from much older models, while the Series 11 is better for new buyers or those wanting the latest minor refinements and future-proofing.
Cardiologists view the Apple Watch as a useful wellness tool for general heart awareness and detecting potential issues like atrial fibrillation (AFib), but not as a replacement for clinical devices, stressing it can't diagnose heart attacks or provide full diagnostic ECGs. They appreciate its ability to prompt users to seek care for irregularities, but caution against over-reliance due to risks of false positives, movement interference, and its single-lead limitation compared to 12-lead ECGs, emphasizing that symptoms always require a doctor's evaluation.
You can make FaceTime audio calls right from the Messages app on your Apple Watch.
The Series 10 gains a new S10 SIP, or system-in-package, making it the fastest Apple Watch I've ever used. It also means there is support for features like on-device Siri processing and the Double tap gesture. The Apple Watch Series 10 even looks good when it's charging.