Apple revealed the Apple Watch Series 10 on September 9, 2024, and began selling it on September 20, 2024. The redesigned smartwatch introduced a larger, thinner case, a wide-angle OLED display, faster charging and new water-related features; it did not add blood-oxygen measurement to models sold in the United States.
What Apple revealed
The Series 10 was announced alongside the iPhone 16 lineup at Apple’s September 2024 event. It became the tenth-generation Apple Watch, succeeding Series 9. Apple offered two case sizes, 42 mm and 46 mm, in aluminum or polished titanium. The aluminum models came in jet black, rose gold and silver; titanium finishes included natural, gold and slate.
Apple described the watch as its thinnest model at launch, at 9.7 mm thick. The company redesigned the internal layout, including the speaker and electronics, to make the slimmer case possible. The watch retained the familiar Digital Crown, side button and interchangeable-band system, so existing bands designed for compatible Apple Watch case sizes can be used.
It is important to distinguish the announcement from later availability: Series 10 is not a future or rumored product. It was officially announced and released in 2024. Details below describe that released model, rather than predictions about another generation.
Display, size and design
The Series 10’s display is larger than the screens on earlier Apple Watch generations, including the Series 9, and Apple said it provides up to 30 percent more screen area than those older models. Its wide-angle OLED design improves brightness when viewed from an angle. That can make the screen easier to glance at while the wrist is turned away from the wearer.
The display also refreshes once per second in always-on mode, allowing supported watch faces to show a ticking seconds hand without requiring the wearer to raise their wrist. The 42 mm and 46 mm measurements refer to case height, not the display’s diagonal size. Choosing between them is mostly a matter of wrist fit, comfort and preferred screen area; the larger case offers more room for text and controls.
Both aluminum and titanium versions have an Always-On Retina display. The titanium option is a premium material choice, while aluminum is lighter and offered in different finishes. Neither material changes the core watchOS experience or the main health and fitness functions.
Health, fitness and water features
Series 10 includes standard Apple Watch capabilities such as heart-rate tracking, sleep tracking, workout recording, fall detection and emergency features, subject to regional availability and setup. It can track sleep and, with supported software, provide sleep-apnea notifications. Those notifications are not a diagnosis and are not a substitute for medical evaluation.
The model adds a water-temperature sensor and a depth gauge rated for recreational water activities down to 6 meters. Apple designed the depth feature for activities such as snorkeling, swimming and shallow-water diving—not scuba diving or other activities involving deeper dives or high water pressure. The watch is water resistant, not waterproof, and water resistance can diminish over time. Check Apple’s guidance before using it in water, and do not assume that water resistance makes every water sport appropriate.
Series 10 also supports the Oceanic+ app for snorkeling features, with availability and app requirements applying. As with other Apple Watches, water lock can help prevent unintended screen input during water use, but it does not make the device more water resistant.
Charging, battery and performance
Apple rates Series 10 for up to 18 hours of normal use and up to 36 hours in Low Power Mode. Actual battery life varies with settings, cellular use, workouts and other activity. These figures are estimates, not a guarantee that every watch will last a set number of hours in every situation.
Fast charging is one of the practical upgrades. Apple says the watch can charge to about 80 percent in around 30 minutes when used with a suitable USB-C charging cable and power adapter. It also says 15 minutes of charging can provide up to eight hours of normal use, or eight minutes can provide enough charge for up to eight hours of sleep tracking. Charging performance depends on using the required compatible equipment and can vary.
The watch uses Apple’s S10 SiP, or system in package, and supports on-device features such as Siri requests that do not require internet access. It works with an iPhone, rather than as a fully independent replacement for one. Some functions, including cellular connectivity, depend on the chosen model, carrier, region and plan.
Blood oxygen and regional differences
A common question is whether Series 10 measures blood oxygen. The answer depends on where the watch was sold and which software and hardware configuration it has. In the United States, Apple disabled the Blood Oxygen feature on affected Apple Watch models sold after a January 2024 import ruling. Apple’s U.S. Series 10 launch materials therefore did not present blood-oxygen measurement as an available Series 10 feature.
Availability can differ in other countries, and the situation can change as legal or product circumstances change. Buyers should check the feature list for their specific country and model rather than relying on a review or listing written for another market. Regardless of region, a consumer smartwatch’s measurements should not be treated as a medical diagnosis.
Series 10 compared with Series 9 and Ultra 2
Compared with Series 9, Series 10’s main changes are its slimmer body, larger and more angle-readable display, faster charging, and added water temperature and depth functions. It still focuses on everyday smartwatch use: notifications, apps, workouts, health tracking and iPhone integration. Owners of a recent Apple Watch may find the new design more compelling than a dramatic change in basic functionality.
Apple Watch Ultra 2 is a different kind of choice. It has a larger, more rugged case, a longer advertised battery life and features aimed at outdoor and water activities. Series 10 is thinner and comes in smaller case sizes, making it a more conventional everyday option. The depth gauge on Series 10 does not make it equivalent to Ultra for diving; its stated depth limit is 6 meters.
For someone upgrading from a much older Apple Watch, Series 10 can bring a more modern display, current software support and newer sensors. For someone who mainly wants notifications and basic activity tracking, a less expensive compatible model may cover those needs. Check current compatibility and software support before buying any older device.
Frequently Asked Questions
When did the Apple Watch Series 10 come out?
Apple announced it on September 9, 2024. It became available for purchase on September 20, 2024.
How much did the Apple Watch Series 10 cost at launch?
In the United States, launch prices started at $399 for the GPS aluminum model and $499 for GPS plus Cellular aluminum. Titanium models started at $699. Prices varied by configuration and country, and current retail prices may differ.
Does Series 10 work with Android phones?
No. Apple Watch requires an iPhone for setup and is not designed to pair with Android phones.
Can I swim or scuba dive with Series 10?
It is suitable for swimming and shallow-water activities within Apple’s stated limits, including a 6-meter depth limit for its depth gauge. It is not intended for scuba diving or deeper, high-pressure water activities.
Does Series 10 have a longer battery life than Series 9?
Apple’s stated normal-use rating for both is up to 18 hours. Series 10’s notable charging improvement is faster charging, not a longer advertised standard battery-life rating.