Compare / iron set
Live · checked today · 5 UK retailers tracked
Callaway BIG Bertha B21 Iron Set vs Callaway X Forged Iron Set
Quick verdict
Checked daily across 5 UK retailers
Price and availability verdict
Callaway BIG Bertha B21 Iron Set is currently £449.99 used, while Callaway X Forged Iron Set is currently £879. Deal scores are Callaway X Forged Iron Set 47/100; against tracked history, Callaway BIG Bertha B21 Iron Set is 14% above its lowest tracked price and Callaway X Forged Iron Set is 76% above its lowest tracked price. Callaway BIG Bertha B21 Iron Set is currently available from 1 UK retailer, versus 4 for Callaway X Forged Iron Set.
Callaway
BIG Bertha B21 Iron Set
£449.99 used No change at its low Buy £449.99 → at Nearly New Golf ClubsDeal intelligence
Should you buy now, or wait?
Neither is at its low today. The Callaway BIG Bertha B21 Iron Set is closest, within 14% of its lowest tracked price. The Callaway X Forged Iron Set has more room: its tracked low is £499.
Callaway · BIG Bertha B21 Iron Set
Not enough data yet
Today £909 · typical £909 · lowest £799
On sale 1 time in the last 3 months
Callaway · X Forged Iron Set
Fair price today
Today £879 · typical £879 · lowest £499
On sale 2 times in the last 5 months
Head to head
Category leaders, from the data on this page
- Cheapest new BIG Bertha B21 £449.99 vs £879
- Closest to its tracked low BIG Bertha B21 14% above vs 76%
- Most retailers in stock X Forged 4 vs 1
- Cheapest used BIG Bertha B21 from £449.99 vs £949.95
Where to buy
5 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 · BIG Bertha B21 Iron Set
No change
since 13 February 2026
Lowest £799 on 16 March 2026
Callaway · X Forged Iron Set
↑ £380
since 13 February 2026
Lowest £499 on 13 February 2026
New vs used
From used listings we track
Callaway · BIG Bertha B21 Iron Set
NEW £449.99
USED FROM £449.99
Callaway · X Forged Iron Set
NEW £879
USED FROM £949.95
Used prices average 117% of new · 2 used listings tracked
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha B21 Iron Set | Callaway X Forged Iron Set |
|---|---|---|
| Stiff | — | 2 retailers · from £879 at Golf Gear Direct → |
| Standard | — | 2 retailers · from £1,229 at Affordable Golf → |
| Regular · Left-hand · Used | 1 retailer · from £449.99 at Nearly New Golf Clubs → | — |
| Extra Stiff · Used | — | 1 retailer · from £949.95 at Replay Golf → |
| Stiff · Used | — | 1 retailer · from £1,099.95 at Replay Golf → |
Waiting for a better price?
Set a free alert and we’ll email you when either drops to your target.
Related iron set comparisons
More head-to-head price checks
Common questions about the Callaway BIG Bertha B21 Iron Set vs Callaway X Forged 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.