Adidas Adizero Prime X3 STRUNG vs Nike Vaporfly 4

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

± Divisive

Featherlight and firm with a snappy forefoot, the Vaporfly 4 feels electric from 5K to the half marathon but turns harsh and unstable once a marathon-length effort drags on.

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

± Divisive

The lower stack still takes the edge off at race pace and the heel is well protected, but the forefoot is deliberately raw and several testers find it too thin for long-distance comfort.

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

± Divisive

The redesigned mesh is lighter, more breathable and more secure through the midfoot than the Vaporfly 3, but it remains narrow and low-volume, with heel slippage and a thin tongue for some.

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

− Criticised

Exposed heel foam and thin outsole rubber wear quickly, and although a few testers see improvement over the Vaporfly 3, most still expect a short, race-only lifespan.

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

+ Praised

The redesigned outsole grips well on dry roads and holds up better than the previous version, though wet-weather traction and exposed foam remain weak points.

Adidas Adizero Prime X3 STRUNG

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Nike Vaporfly 4

− Criticised

A narrow platform, soft heel and compliant forefoot make the Vaporfly 4 twitchy at slow speeds and tiring late in a race, especially for heel strikers and heavier runners.

Adidas Adizero Prime X3 STRUNG

No Review Pulse yet.

Nike Vaporfly 4

± Divisive

At $260 to $275 it is priced like a top-tier racer, which some testers accept for the weight and efficiency while others say rival super shoes offer more speed or durability for less.