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Live · checked today · 6 UK retailers tracked
Callaway Quantum MAX OS Iron Set vs Mizuno PRO S-1 Iron Set
Quick verdict
Checked daily across 6 UK retailers
Best deal today: Callaway Quantum MAX OS 61 CaddenceScore
Callaway Quantum MAX OS Iron Set is currently £699 used, while Mizuno PRO S-1 Iron Set is currently £899.99 used. Deal scores are Callaway Quantum MAX OS Iron Set 61/100 and Mizuno PRO S-1 Iron Set 51/100; against tracked history, Callaway Quantum MAX OS Iron Set is 399% above its lowest tracked price and Mizuno PRO S-1 Iron Set is 9% above its lowest tracked price. Callaway Quantum MAX OS Iron Set is currently available from 5 UK retailers, versus 4 for Mizuno PRO S-1 Iron Set.
Callaway
Quantum MAX OS Iron Set
£749 used from £699 No change at its low Buy £749 → at Golf Gear DirectMizuno
PRO S-1 Iron Set
£1,079 used from £899.99 No change at its low Buy £1,079 → at Golf Gear DirectDeal intelligence
Should you buy now, or wait?
Neither is at its low today. The Mizuno PRO S-1 Iron Set is closest, within 9% of its lowest tracked price. The Callaway Quantum MAX OS Iron Set has more room: its tracked low is £150.
Callaway · Quantum MAX OS Iron Set
Good deal today
Today £749 · typical £749 · lowest £150
On sale 1 time in the last 5 months
Mizuno · PRO S-1 Iron Set
Fair price today
Today £1,079 · typical £1,079 · lowest £989
On sale 1 time in the last 5 months
Head to head
Category leaders, from the data on this page
- Cheapest new Quantum MAX OS £749 vs £1,079
- Closest to its tracked low PRO S-1 9% above vs 399%
- Holds value better used Quantum MAX OS used avg 93% of new vs 83%
- Most retailers in stock Quantum MAX OS 5 vs 4
- Cheapest used Quantum MAX OS from £699 vs £899.99
- Best deal today Quantum MAX OS CaddenceScore 61 vs 51
Where to buy
6 UK retailers, checked daily
Price trajectory
How each has moved since we started tracking
Lowest tracked price per day, any condition. Caddence tracks both daily. Shaded spans are days we couldn’t collect prices — the lines break rather than guessing.
Callaway · Quantum MAX OS Iron Set
↓ £151
since 13 February 2026
Lowest £150 on 4 March 2026
Mizuno · PRO S-1 Iron Set
No change
since 21 February 2026
Lowest £989 on 26 July 2026
New vs used
From used listings we track
Callaway · Quantum MAX OS Iron Set
NEW £749
USED FROM £699
Used prices average 93% of new · 1 used listing tracked
Mizuno · PRO S-1 Iron Set
NEW £1,079
USED FROM £899.99
Used prices average 83% of new · 1 used listing tracked
Availability by build
Which configurations are in stock right now
| Build | Callaway Quantum MAX OS Iron Set | Mizuno PRO S-1 Iron Set |
|---|---|---|
| Regular | 4 retailers · from £749 at Golf Gear Direct → | — |
| Stiff | 2 retailers · from £899 at Affordable Golf → | 3 retailers · from £1,079 at Golf Gear Direct → |
| Regular · Left-hand | 2 retailers · from £899 at Affordable Golf → | — |
| Stiff · Left-hand | 2 retailers · from £899 at Affordable Golf → | — |
| Standard | 1 retailer · from £899 at Affordable Golf → | — |
| Senior · Used | 1 retailer · from £699 at Preowned Golf → | — |
| Left-hand | 1 retailer · from £899 at Affordable Golf → | — |
| Senior · Left-hand | 1 retailer · from £900 at Jam Golf → | — |
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Common questions about the Callaway Quantum MAX OS Iron Set vs Mizuno PRO S-1 Iron Set
Prices shown are the cheapest in-stock price per retailer tracked by Caddence, updated daily. Always confirm the final price on the retailer's site.