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Hoka Carbon X 3 vs Nike Alphafly 4 (2026 Comparison)

Hoka Carbon X 3 vs Nike Alphafly 4

Can Hoka really compete with Nike when it comes to carbon-plated shoes? After all, Nike pioneered the technology with its Vaporfly.

First, Hoka targets very long distances (ultra) with its Carbon X 3. The brand relied on American ultra-trail champion Jim Walmsley to popularize this road running shoe.

Note: the Carbon X 3 is no longer on sale. Its closest replacement at Hoka is the Mach X 3, born from a cross between the Mach 5 and the Carbon X 2. Nike’s marathon answer is the Alphafly 4, its flagship at that distance.

Comparison
Weight
Drop
Stack (heel/forefoot)
Cushioning
Plate
Foam
Responsiveness
Best for
Support
Surface
242 g
5 mm
32 / 27 mm
Firm
Carbon plate
PROFLY X
High
Training, racing ยท Marathon
Neutral
Road
187 g
8 mm
39 / 31 mm
Balanced
Carbon plate (Flyplate)
ZoomX LT, ZoomX, Air Zoom
High
Racing ยท Marathon
Neutral
Road

The Nike Alphafly 4 has an elite setup built to go very fast: it’s much lighter, by about 50 g / 1.8 oz, and its midsole is noticeably taller at the heel. The drop is a bit lower on the Carbon X 3.

Hoka has at last moved to supercritical foam (a specific manufacturing technique) with its PROFLY X midsole foam, while the Alphafly 4 layers two ZoomX foams, including the new, lighter ZoomX LT, around a widened Flyplate and two Air Zoom units under the forefoot. In practice, that means a firmer feel on the Hoka and balanced, slightly plush cushioning on the Nike.

Hoka Carbon X 3 vs Nike Alphafly 4

Finally, testers note that the Nike Alphafly 4’s ride is more responsive than the Hoka Carbon X 3’s. The Hoka offers smooth transitions and helps you save energy, but the Nike’s propulsion and bounce are more impressive.

Nike Alphafly 4 vs Hoka Carbon X 3

Carbon X or Alphafly: Which Should You Choose?

While the Alphafly 4 gives a more efficient ride and therefore lets you go faster, the Hoka has other strengths. First, it’s more versatile, and therefore comfortable even at slow paces, while the Alphafly 4 makes less sense at moderate speeds.

Second, the Hoka is more durable: the Alphafly 4’s foam shows wear quickly. Together, these make the Carbon X 3 suitable for daily training, which the Nike is not.

Bottom line, it’s performance versus versatility. If you want a shoe for pure racing, pick the Alphafly 4. For a more versatile carbon-plated shoe to enjoy on your daily runs, we recommend the Carbon X 3 (or its replacement, the Mach X 3).

Kevin Le Gall

Kevin Le Gall

Kevin is the founder and editor of Runner's Lab. He started running in 2015 and completed his first marathon in Rotterdam in 2016. He's also worked for Under Armour from 2016 to 2018 and helped launch their running collection in Europe (in particular the HOVR shoes). In addition, Kevin is a 300-hour certified yoga teacher (Sivananda) and uses this experience to run more mindfully with a focus on well-being over performance.

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