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Live · checked today · 4 UK retailers tracked
Callaway BIG Bertha B21 Driver vs Cobra Darkspeed MAX Driver
Quick verdict
Checked daily across 4 UK retailers
Price and availability verdict
Callaway BIG Bertha B21 Driver is currently £179.99 used, while Cobra Darkspeed MAX Driver is currently £229.99 used. Against tracked history, Callaway BIG Bertha B21 Driver is 114% above its lowest tracked price and Cobra Darkspeed MAX Driver is 36% above its lowest tracked price. Callaway BIG Bertha B21 Driver is currently available from 1 UK retailer, versus 4 for Cobra Darkspeed MAX Driver.
Callaway
BIG Bertha B21 Driver
£179.99 used ↑ £149.05 21% below usual Buy £179.99 → at Nearly New Golf ClubsCobra
Darkspeed MAX Driver
£279 used from £229.99 No change 18% below usual Buy £279 → at Dormy GolfCallaway
BIG Bertha B21 Driver
£179.99 used
↑ £149.05 7 days
21% below usualat Nearly New Golf Clubs
Deal intelligence
Should you buy now, or wait?
Neither is at its low today. The Cobra Darkspeed MAX Driver is closest, within 36% of its lowest tracked price. The Callaway BIG Bertha B21 Driver has more room: its tracked low is £139.95.
Callaway · BIG Bertha B21 Driver
Not enough data yet
Today £299 · typical £194.95 · lowest £139.95
On sale 3 times in the last 3 months
Cobra · Darkspeed MAX Driver
Not enough data yet
Today £279 · typical £249 · lowest £204.95
On sale 3 times in the last 5 months
Head to head
Category leaders, from the data on this page
- Cheapest new BIG Bertha B21 £179.99 vs £279
- Closest to its tracked low Darkspeed MAX 36% above vs 114%
- Most retailers in stock Darkspeed MAX 4 vs 1
- Cheapest used BIG Bertha B21 from £179.99 vs £229.99
Where to buy
4 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 Driver
No change
since 9 April 2026
Lowest £139.95 on 2 July 2026
Cobra · Darkspeed MAX Driver
↑ £30
since 13 February 2026
Lowest £204.95 on 30 May 2026
New vs used
From used listings we track
Callaway · BIG Bertha B21 Driver
NEW £179.99
USED FROM £179.99
Cobra · Darkspeed MAX Driver
NEW £279
USED FROM £229.99
Used prices average 91% of new · 4 used listings tracked
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha B21 Driver | Cobra Darkspeed MAX Driver |
|---|---|---|
| Regular · 10.5° · Left-hand · Used | 1 retailer · from £179.99 at Nearly New Golf Clubs → | — |
| Regular · 12° · Left-hand | — | 1 retailer · from £279 at Dormy Golf → |
| Regular · 9° · Used | — | 1 retailer · from £229.99 at UK Used Golf Clubs → |
| Regular · 10.5° · Used | — | 1 retailer · from £279.99 at Nearly New Golf Clubs → |
| Regular · 12° · Used | — | 1 retailer · from £249.99 at Nearly New Golf Clubs → |
| Senior · 10.5° · Left-hand · Used | — | 1 retailer · from £252.95 at Replay Golf → |
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Common questions about the Callaway BIG Bertha B21 Driver vs Cobra Darkspeed MAX Driver
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.