Every September, Apple takes the stage to unveil the next iteration of its popular smartwatch. This year, all eyes are on the Apple Watch Series 12, which is expected to debut alongside the latest iPhone lineup. While the overall design is anticipated to remain largely unchanged from the Series 11, there are several internal and feature-related updates that could make the Series 12 a compelling upgrade. Let’s break down what the rumor mill has been indicating and what we might realistically expect.
Design and Display
The Apple Watch Series 12 will likely retain the same rectangular, rounded-corner design that has been a hallmark of the series since the Series 4. The display sizes are expected to remain 41mm and 45mm, with the same always-on Retina LTPO OLED panel that offers excellent brightness and efficiency. Apple may introduce new color options for the aluminum and stainless steel cases, such as a refreshed product red or a new finish for the titanium model. The Digital Crown and side button will remain, along with the same band compatibility. One area where we might see a subtle change is in the thickness: with a new chipset and potentially improved battery chemistry, Apple could shave off a fraction of a millimeter to make the watch slightly thinner and lighter.
Chipset: A Long-Awaited Upgrade
Perhaps the most significant internal change for the Apple Watch Series 12 will be its processor. Apple typically updates the chipset in its wearable every two to three years with new CPU cores. The S6 chip, introduced in 2020, was based on the A13 Bionic. The S7 and S8 chips brought marginal improvements but used the same CPU core architecture. It wasn’t until the S9 chip in 2023 that we saw a new core design, based on the A16 Bionic. This means the Series 12 is due for another generational leap. Rumors suggest the new chip—likely called the S12—will be based on a 3nm process, similar to the A19 chip expected in the iPhone 17 series. A 3nm node offers significant improvements in performance per watt, which could translate to faster app launches, smoother animations, and better battery life. For users who keep their Apple Watch for several years, the Series 12 might be the model to buy precisely because of this chipset upgrade. The S9 already brought a noticeable speed boost over the S8, and the S12 should push that further, enabling more complex on-device processing for health and fitness features.
Touch ID: A Feature Unlikely to Arrive
One of the more interesting rumors surrounding the Apple Watch Series 12 was the potential addition of Touch ID. Reports initially surfaced from a code leak suggesting Apple was testing an in-display fingerprint sensor for the watch. The idea would allow users to unlock the watch, authenticate payments with Apple Pay, and provide a convenient alternative to entering a passcode, especially when the watch is used independently of an iPhone. However, subsequent analysis indicates Apple may have shelved the feature for this generation. The primary concern is physical space: integrating a capacitive fingerprint sensor or an optical sensor under the display would require additional components that could compete with battery capacity or health sensors. Apple prioritizes health tracking and all-day battery life, so any feature that compromises those pillars is unlikely to debut unless the technology matures. As of now, it appears Touch ID will not be part of the Series 12. Instead, users will continue to rely on the secure passcode or the unlock via iPhone feature.
Health Features: Incremental Improvements
Health monitoring remains the Apple Watch’s strongest selling point. The Series 12 is expected to continue the trend of iterative enhancements rather than introducing a completely new sensor array. Rumors have circulated for years about non-invasive blood glucose monitoring, but that technology is still years away from mass production. Similarly, a full blood pressure monitor—which would require a cuff or a highly accurate sensor—remains challenging to implement in a wrist-worn form factor. What we might see is improved hypertension tracking using existing sensors, perhaps with better algorithms that can detect trends in blood pressure variability. The existing ECG, blood oxygen sensor, and temperature sensing capabilities will likely receive software updates that make them more accurate or provide new insights. For example, the temperature sensor could be used for advanced fertility tracking or early fever detection. Apple may also refine the sleep tracking features with more detailed data on sleep stages, respiratory rate, and overnight heart rate variability. While there is no single headline-grabbing new health feature confirmed, the combination of a faster chip and refined algorithms could make the Series 12 a more capable health companion.
Software and Exclusivity
watchOS 13 is expected to debut alongside the Series 12, bringing new watch faces, complications, and fitness features. Some of these software enhancements may be exclusive to the newer model, especially those that rely on the improved chipset for on-device machine learning. For example, enhanced activity coaching, smarter notifications, and more detailed workout metrics could be limited to the Series 12. Apple often reserves certain software features to drive upgrades, so users of older watches may miss out on some functionality. Additionally, new bands and accessories will likely be announced in conjunction with the watch, including seasonal colors and new materials.
Battery and Charging
Battery life has always been a balancing act for the Apple Watch. With a more efficient 3nm chipset, the Series 12 could see a modest increase in battery life—perhaps extending from 18 hours to 24 hours under normal usage. Apple might also improve fast charging, allowing the watch to reach 80% in under 45 minutes. A larger battery is unlikely given the compact form factor, but better power management could make a real difference for users who track sleep and workouts daily.
Ultimately, the Apple Watch Series 12 shapes up to be a refined upgrade rather than a revolutionary one. The chipset update is the most compelling reason to upgrade, especially for those using an S6 or S7 model. Touch ID remains a possibility for future generations, but for now, Apple seems focused on perfecting existing features. As we approach September, more leaks and rumors will likely emerge, giving us a clearer picture. What features are you most hoping to see in the next Apple Watch?
Source: 9to5Mac News