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Live · checked today · 2 UK retailers tracked
Callaway Great BIG Bertha Iron Set — Generation Unknown vs Callaway X18 Iron Set
Quick verdict
Checked daily across 2 UK retailers
Price and availability verdict
Callaway Great BIG Bertha Iron Set — Generation Unknown is currently £129.99 used, while Callaway X18 Iron Set is currently £127.99 used. Against tracked history, Callaway Great BIG Bertha Iron Set — Generation Unknown is at its lowest tracked price and Callaway X18 Iron Set is at its lowest tracked price. Callaway Great BIG Bertha Iron Set — Generation Unknown is currently available from 2 UK retailers, versus 1 for Callaway X18 Iron Set.
Callaway
Callaway Great BIG Bertha Iron Set — Generation Unknown
from £129.99
at UK Used Golf Clubs · 2 retailers
Lowest £120 · below its usual price
Callaway
Callaway X18 Iron Set
from £127.99
at Golf Clubs 4 Cash · 1 retailer
Lowest £128 · lowest price we’ve seen
Discount vs RRP
Price vs usual
Where to buy
Callaway Great BIG Bertha Iron Set — Generation Unknown
Where to buy
Callaway X18 Iron Set
Deal intelligence
Should you buy now, or wait?
Callaway · Great BIG Bertha Iron Set — Generation Unknown
Not enough data yet
Today £349.80 · usual £349.80 · lowest £349.80
Callaway · X18 Iron Set
Not enough data yet
Head to head
Category leaders, from the data on this page
- Cheapest new X18 £127.99 vs £129.99
- Most retailers in stock Great BIG Bertha Iron Set — Generation Unknown 2 vs 1
- Cheapest used X18 from £127.99 vs £129.99
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 · Great BIG Bertha Iron Set — Generation Unknown
No change
since 11 July 2026
Lowest £349.80 on 11 July 2026
New vs used
From used listings we track
Callaway · Great BIG Bertha Iron Set — Generation Unknown
NEW £129.99
USED FROM £129.99
Callaway · X18 Iron Set
NEW £127.99
USED FROM £127.99
Availability by build
Which configurations are in stock right now
| Build | Callaway Great BIG Bertha Iron Set — Generation Unknown | Callaway X18 Iron Set |
|---|---|---|
| Firm · Used | 1 retailer · from £145.99 at Golf Clubs 4 Cash → | — |
| Regular · Used | 1 retailer · from £129.99 at UK Used Golf Clubs → | 1 retailer · from £152.99 at Golf Clubs 4 Cash → |
| Stiff · Used | 1 retailer · from £129.99 at UK Used Golf Clubs → | — |
| Uniflex · Used | 1 retailer · from £149.99 at Golf Clubs 4 Cash → | 1 retailer · from £127.99 at Golf Clubs 4 Cash → |
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Common questions about the Callaway Great BIG Bertha Iron Set — Generation Unknown vs Callaway X18 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.