S12: iteration and expectation Alphanumeric model names are the industry’s compact history. S12 denotes evolution: twelfth in a lineage that carries accumulated fixes, features, and reputations. Users encountering an “S12” expect compatibility notes, incremental improvements, and release notes that justify an upgrade. Behind that label lie engineering trade-offs—power consumption vs. performance, backward compatibility vs. innovation—and the marketing imperative to make each iteration feel meaningfully new.