Apple Watch Chipsets Endured Years of Overlooked Enhancements, Yet the A20 Pro Laid the Groundwork for This Year’s Significant S11 Upgrade

Last updated on September 12, 2026September 13, 2026 by Souvik Banerjee on Categories Technology

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The Evolution of the Apple Watch: A Leap Forward with the S11 Chip

The introduction of the Apple Watch’s System in Package (SiP) has historically been marked by a series of lackluster and incremental changes.

This necessitated that each iteration highlight distinct selling points to justify an upgrade. However, this year marks a pivotal shift with the arrival of the S11 chip, now featured in both the Apple Watch Series 12 and Apple Watch Ultra 4.

This advancement is largely attributed to the technological prowess of the A20 Pro, harnessed from the latest iPhone 18 Pro and iPhone Duo.

The S11’s Architectural Breakthrough: Enhancements Tailored for AI

While it remains to be seen if the S11 adopts the same 2nm manufacturing process as the A20 Pro, its architectural design undeniably borrows from Apple’s leading iPhone system-on-chip (SoC).

Significant improvements have been integrated to meet the demands of artificial intelligence (AI) applications, necessitating a substantial performance boost for the Apple Watch Series 12 and Apple Watch Ultra 4.

Equipped with two efficiency cores, a single-core GPU, and a dedicated 4-core Neural Engine, the S11 brings forth substantial gains.

Just as the CPU, GPU, and NPU combination in the A20 Pro realizes a remarkable 50 percent enhancement in memory bandwidth, the synergy of these components within the S11 achieves similar advancements.

Notably, the 4-core Neural Engine now boasts a 50 percent increase in its Last-Level Cache (LLC), specifically the L3 cache. Image credits – Apple

Moreover, it is commendable that the S11 showcases a memory capacity on par with that of an iPhone 13, a device released in 2021.

In essence, Apple has delivered an astonishing leap in specifications within a mere five years. It is worth noting that the Apple Watch lineage was due for such an upgrade; the S10 had been effectively tethered to the same technological generation as the A18 Pro, rendering it two generations behind.

With these substantive enhancements, the new Apple Watch Series 12 and Apple Watch Ultra 4 are poised to receive extended support for annual software updates alongside exclusive AI functionalities.

The Perfect Companion for Explorations: All the Latest Features of the Apple Watch Ultra 3

Consequently, consumers can be assured of significant value should they choose to pre-order either smartwatch at this juncture.

The 42mm Apple Watch Series 12 is available for $399 on Amazon, while the Apple Watch Ultra 4 is priced at $799.

Source link: Wccftech.com.

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Souvik Banerjee

I’m Souvik Banerjee from Kolkata, India. As a Marketing Manager at RS Web Solutions (RSWEBSOLS), I specialize in digital marketing, SEO, programming, web development, and eCommerce strategies. I also write tutorials and tech articles that help professionals better understand web technologies.