adidas Adizero Prime X 2.0 STRUNG vs Adizero Adios Pro 4

The adidas Adizero Prime X 2.0 STRUNG and the adidas Adizero Adios Pro 4 are often confused because they're both premium, carbon-plated options from the German brand, sharing the same Lightstrike Pro foam at their core. But despite these similarities, they serve very different purposes. The Adios Pro 4 is a true race-day shoe, fine-tuned for marathon performance with a lightweight build, aggressive geometry. In contrast, the Prime X 2 is a super trainer: heavier and designed more for long, steady runs within your marathon build rather than for race-day performance itself.