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Live · checked today · 5 UK retailers tracked
Callaway BIG Bertha Fusion Driver vs Mizuno ST-G 440 Driver
Quick verdict
Checked daily across 5 UK retailers
Price and availability verdict
Callaway BIG Bertha Fusion Driver is currently £109.99 used, while Mizuno ST-G 440 Driver is currently £169.95 used. Against tracked history, Callaway BIG Bertha Fusion Driver is 7% above its lowest tracked price and Mizuno ST-G 440 Driver is 19% above its lowest tracked price. Both are currently available from 3 UK retailers.
Callaway
BIG Bertha Fusion Driver
£109.99 used ↑ £10.04 at its low Buy £109.99 → at The Second Hand Golf ShopCallaway
BIG Bertha Fusion Driver
£109.99 used
↑ £10.04 7 days
at its lowat The Second Hand Golf Shop
Deal intelligence
Should you buy now, or wait?
Neither is at its low today. The Callaway BIG Bertha Fusion Driver is closest, within 7% of its lowest tracked price. The Mizuno ST-G 440 Driver has more room: its tracked low is £199.95.
Callaway · BIG Bertha Fusion Driver
Not enough data yet
Today £127.95 · typical £141.29 · lowest £119.95
On sale 1 time in the last 4 months
Mizuno · ST-G 440 Driver
Not enough data yet
Today £237.95 · typical £279.95 · lowest £199.95
On sale 2 times in the last 3 months
Head to head
Category leaders, from the data on this page
- Cheapest new BIG Bertha Fusion £109.99 vs £237.95
- Closest to its tracked low BIG Bertha Fusion 7% above vs 19%
- Cheapest used BIG Bertha Fusion from £109.99 vs £169.95
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 Fusion Driver
↓ £29.04
since 9 April 2026
Lowest £119.95 on 7 August 2026
Mizuno · ST-G 440 Driver
↑ £11
since 9 April 2026
Lowest £199.95 on 24 July 2026
New vs used
From used listings we track
Callaway · BIG Bertha Fusion Driver
NEW £109.99
USED FROM £109.99
Mizuno · ST-G 440 Driver
NEW £237.95
USED FROM £169.95
Used prices average 92% of new · 3 used listings tracked
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha Fusion Driver | Mizuno ST-G 440 Driver |
|---|---|---|
| Regular · 10.5° · Used | 2 retailers · from £109.99 at The Second Hand Golf Shop → | — |
| Extra Stiff · 9.5° · Used | — | 2 retailers · from £169.95 at Replay Golf → |
| Stiff · 10.5° · Left-hand · Used | 1 retailer · from £129.99 at Golf Clubs 4 Cash → | — |
| Stiff · 9.5° | — | 1 retailer · from £237.95 at Replay Golf → |
| Stiff · 9.5° · Used | — | 1 retailer · from £239.99 at Mega Golf → |
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Common questions about the Callaway BIG Bertha Fusion Driver vs Mizuno ST-G 440 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.