Apple has announced its upcoming Apple Watch models, which will feature the updated S11 system in package (SiP). However, internal documents suggest that the performance improvements may be minimal. The new chip architecture is similar to the S9 and S10 chips, which have a 64-bit dual-core processor with a 4-core Neural Engine and second-generation Ultra Wideband support.
Notably, Apple could make tweaks to the underlying technology despite using the same core technology as previous models. For example, the S10 had a redesigned chip with a thinner profile for reduced space. However, it is likely that the upcoming S12 chip in 2026 will use a new microarchitecture with performance improvements.
Several codenames have been discovered for future Apple Watch models: N227 and N228 for the Series 11 (including cellular), N230 for the Ultra 3, N237 and N238 for the Series 12 (including cellular), and N240 for the Ultra 4. The new devices are expected to be unveiled at Apple’s September event.
Note: The article has been condensed to preserve essential information while eliminating redundant details and improving clarity.
Source: https://www.macrumors.com/2025/08/13/apple-watch-s11-chip-info