Evidence-led comparison · not a wear test
Nike Alphafly 3 vs Adidas Adizero Adios Pro 4
Choose between Nike Alphafly 3 and Adidas Adizero Adios Pro 4 by the session you need it for, fit and current price—not by assuming that lighter, newer or more expensive means better.
Nike Alphafly 3
Marathon racer combining ZoomX foam, a carbon Flyplate and forefoot Air Zoom units. Running Warehouse lists a men's US 9 weight of 7.0 oz and 40/32 mm stack. Price is the checked Sail/Burg Ash/Phantom offer; other colorways may differ.
Available when checked
Specs and buying guide →Adidas Adizero Adios Pro 4
Road racer using Lightstrike Pro foam and carbon EnergyRods 2.0, not a conventional solid plate. Running Warehouse lists 7.1 oz and 39/33 mm stack for men's US 9. The $199.88 checked price is a Blue/Silver/Red clearance offer, not MSRP or a guaranteed future price.
Available when checked
Specs and buying guide →Specifications at a glance
Historical values are labeled, not newly verified. Prices are snapshots—not MSRP or live offers. Higher stack, lower weight and carbon construction do not establish a better shoe.
| Specification | Nike Alphafly 3Source checked | Adidas Adizero Adios Pro 4Source checked |
|---|---|---|
| Intended category | racing | racing |
| Weight | 7 oz | 7.1 oz |
| Heel stack | 40 mm | 39 mm |
| Forefoot stack | 32 mm | 33 mm |
| Heel-to-toe drop | 8 mm | 6 mm |
| Recorded price | 294.95 USD | 199.88 USD |
| Stability category | neutral | neutral |
| Cushioning category | soft | soft |
| Carbon reinforcement | Yes | Yes |
| Performance foam category | Yes | Yes |
| Availability | Available when checked | Available when checked |
What the measurements actually change
Weight
Alphafly 3: 7 oz; Adizero Adios Pro 4: 7.1 oz. The recorded difference is 0.1 oz; Adizero Adios Pro 4 has the higher value. This does not establish better performance.
Heel stack
Alphafly 3: 40 mm; Adizero Adios Pro 4: 39 mm. The recorded difference is 1 mm; Alphafly 3 has the higher value. This does not establish better performance.
Forefoot stack
Alphafly 3: 32 mm; Adizero Adios Pro 4: 33 mm. The recorded difference is 1 mm; Adizero Adios Pro 4 has the higher value. This does not establish better performance.
Drop
Alphafly 3: 8 mm; Adizero Adios Pro 4: 6 mm. The recorded difference is 2 mm; Alphafly 3 has the higher value. This does not establish better performance.
When to shortlist Alphafly 3
Nike Alphafly 3 is catalogued for racing. Consider it for a race-specific shortlist, then rehearse in training before committing to race day. Check comfort over your intended distance and stability at your target pace. Carbon reinforcement alone does not establish a faster shoe for you.
When to shortlist Adizero Adios Pro 4
Adidas Adizero Adios Pro 4 is catalogued for racing. Consider it for a race-specific shortlist, then rehearse in training before committing to race day. Check comfort over your intended distance and stability at your target pace. Carbon reinforcement alone does not establish a faster shoe for you.
Different models, different buying decisions
These are separate models, not necessarily direct replacements. Both sit in the racing category, so try them for the same session before judging fit and feel. A specification comparison cannot substitute for a fit test.
Price and value—not a live deal comparison
Alphafly 3: 294.95 USD; Adizero Adios Pro 4: 199.88 USD. These are recorded offers, potentially from different dates, colors or clearance periods. They are not necessarily launch prices. Check both source links for matching size/width, current price and return policy before deciding which offers better value.
What this comparison cannot establish
We have not independently measured fit, outsole grip, energy return, comfort or durability for this pair. The absence of a rating is not a poor score. No universal winner, injury-prevention claim or race-time improvement is inferred from carbon construction, foam classification or stack height.
Questions before buying
Which is better: Nike Alphafly 3 or Adidas Adizero Adios Pro 4?
Choose between Nike Alphafly 3 and Adidas Adizero Adios Pro 4 by the session you need it for, fit and current price—not by assuming that lighter, newer or more expensive means better.
Which of these shoes is lighter?
Alphafly 3: 7 oz; Adizero Adios Pro 4: 7.1 oz. The recorded difference is 0.1 oz; Adizero Adios Pro 4 has the higher value. This does not establish better performance.
Can these shoes serve different roles in my rotation?
These are separate models, not necessarily direct replacements. Both sit in the racing category, so try them for the same session before judging fit and feel. A specification comparison cannot substitute for a fit test.
Are the listed prices and availability current?
Alphafly 3: Available when checked. Adizero Adios Pro 4: Available when checked. Alphafly 3: 294.95 USD; Adizero Adios Pro 4: 199.88 USD. These are recorded offers, potentially from different dates, colors or clearance periods. They are not necessarily launch prices. Check both source links for matching size/width, current price and return policy before deciding which offers better value.
Is this a hands-on review?
Specification-based buying guidance, not a hands-on review. Running Warehouse is our primary specification source. Categories and buying considerations are editorial interpretations, not measured performance. We do not invent comfort scores, durability mileage, fit tests or race-time gains.
Sources, checks and editorial standards
Specification-based buying guidance, not a hands-on review. Running Warehouse is our primary specification source. Categories and buying considerations are editorial interpretations, not measured performance. We do not invent comfort scores, durability mileage, fit tests or race-time gains.
Nike Alphafly 3
Source-checked specifications
Recorded source check: 2026-09-26 (UTC date).
One men's/unisex US 9 shoe, ounces; stack/drop in millimetres.
- Source checked on the stated date, not continuously refreshed.
- Fit, durability and running economy have not been independently tested by RunAnalytics.
Adidas Adizero Adios Pro 4
Source-checked specifications
Recorded source check: 2026-09-26 (UTC date).
One men's/unisex US 9 shoe, ounces; stack/drop in millimetres.
- Source checked on the stated date, not continuously refreshed.
- Fit, durability and running economy have not been independently tested by RunAnalytics.
Published by RunAnalytics. Sources are checked on the dates shown, not continuously. Spot an error? Send the model, disputed field and a source link. We retain older records for comparison, but do not label them as newly verified.