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Specs, loft charts and modeled carry for two sets golfers cross-shop. Callaway Quantum Max and Callaway Quantum Max OS each have a full page.
| Spec | Callaway Quantum Max | Callaway Quantum Max OS |
|---|---|---|
| Category | Game Improvement | Super Game Improvement |
| Player type | Mid Handicap | High Handicap |
| Model year | 2026 | 2026 |
| 7-iron loft | 27.5° | 26.5° |
| PW loft | 41° | 40.5° |
| Set makeup | 5-iron to PW | 5-iron to PW |
| MSRP | $1,199 | $1,099 |
| Technology | Hollow Body, Stronger Lofts, AI Designed Face | Hollow Body, Stronger Lofts, Wide Sole, Perimeter Weighting, AI Designed Face |
| Editorial recognition | - | - |
| Club | Callaway Quantum Max | Callaway Quantum Max OS | Loft delta |
|---|---|---|---|
| 5i | 20.5° | 19.5° | +1° |
| 6i | 24° | 23° | +1° |
| 7i | 27.5° | 26.5° | +1° |
| 8i | 31.5° | 31° | +0.5° |
| 9i | 36° | 35.5° | +0.5° |
| PW | 41° | 40.5° | +0.5° |
Modeled from TrackMan-based norms scaled to each set's lofts, not measured for these models.
| Club | Moderate swing | Average swing | Faster swing | |||
|---|---|---|---|---|---|---|
| Quantum Max | Quantum Max OS | Quantum Max | Quantum Max OS | Quantum Max | Quantum Max OS | |
| 5i | 165 y | 167 y | 182 y | 184 y | 198 y | 200 y |
| 6i | 156 y | 158 y | 172 y | 174 y | 187 y | 189 y |
| 7i | 146 y | 148 y | 161 y | 163 y | 175 y | 177 y |
| 8i | 136 y | 138 y | 150 y | 152 y | 163 y | 165 y |
| 9i | 124 y | 126 y | 137 y | 139 y | 149 y | 151 y |
| PW | 114 y | 116 y | 126 y | 128 y | 137 y | 139 y |
| Club | Callaway Quantum Max | Callaway Quantum Max OS | Δ carry |
|---|---|---|---|
| 5i | 168 yd | 168 yd | 0 |
| 6i | 159 yd | 159 yd | 0 |
| 7i(anchor) | 150 yd | 150 yd | 0 |
| 8i | 140 yd | 139 yd | -1 |
| 9i | 129 yd | 128 yd | -1 |
| PW | 116 yd | 115 yd | -1 |
| Estimated from loft specs · ±5 yd accuracy | avg -0.6 yd | ||
The Callaway Quantum Max and the Callaway Quantum Max OS share the same core recipe: a hollow body, an AI designed face, stronger lofts, and a 5-iron to PW set. What separates them is size and sole. The Quantum Max OS is the super game improvement version, with a wide sole and perimeter weighting that the Quantum Max does not carry, so it should be the more forgiving head on thin and heavy strikes. It is also 1 degree stronger at the 7-iron, 26.5° against 27.5°, worth roughly 2 yards more carry at the same swing speed, so check your wedge gapping. The Quantum Max, as a game improvement iron, is the more compact of the two and suits players who want help without the widest sole in the bag.
For most golfers choosing between these two, the Quantum Max OS is the better buy. It is $100 cheaper at list price, $1,099 versus $1,199, and it adds forgiveness rather than taking anything away. Pick the Quantum Max if you prefer a tidier look at address, want a slightly smaller head, or value feel over maximum help. If distance, forgiveness and price are your priorities, the Quantum Max OS wins on all three.