Compare / hybrid
Live · checked today · 4 UK retailers tracked
Callaway BIG Bertha B21 Hybrid vs Callaway BIG Bertha OS Hybrid (2017)
Quick verdict
Checked daily across 4 UK retailers
Price and availability verdict
Callaway BIG Bertha B21 Hybrid is currently £88.99 used, while Callaway BIG Bertha OS Hybrid (2017) is currently £74.99 used. Against tracked history, Callaway BIG Bertha B21 Hybrid is 18% above its lowest tracked price and Callaway BIG Bertha OS Hybrid (2017) is 10% above its usual price. Callaway BIG Bertha B21 Hybrid is currently available from 3 UK retailers, versus 2 for Callaway BIG Bertha OS Hybrid (2017).
Callaway
Callaway BIG Bertha B21 Hybrid
from £88.99
at Golf Clubs 4 Cash · 3 retailers
Lowest £50 · below its usual price
Callaway
Callaway BIG Bertha OS Hybrid (2017)
from £74.99
at The Second Hand Golf Shop · 2 retailers
Lowest £43 · above its usual price
Discount vs RRP
Price vs usual
Where to buy
Callaway BIG Bertha B21 Hybrid
Where to buy
Callaway BIG Bertha OS Hybrid (2017)
Deal intelligence
Should you buy now, or wait?
Callaway · BIG Bertha B21 Hybrid
Not enough data yet
Today £99.95 · usual £89.95 · lowest £84.95
On sale 1 time in the last 3 months
Callaway · BIG Bertha OS Hybrid (2017)
Not enough data yet
Head to head
Category leaders, from the data on this page
- Cheapest new BIG Bertha OS Hybrid (2017) £74.99 vs £88.99
- Most retailers in stock BIG Bertha B21 3 vs 2
- Cheapest used BIG Bertha OS Hybrid (2017) from £74.99 vs £88.99
Specification differences
Published product specifications
| Specification | Callaway BIG Bertha B21 Hybrid | Callaway BIG Bertha OS Hybrid (2017) |
|---|---|---|
| Release year | 2021 | 2025 |
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 Hybrid
↓ £59.05
since 23 February 2026
Lowest £84.95 on 18 August 2026
New vs used
From used listings we track
Callaway · BIG Bertha B21 Hybrid
NEW £88.99
USED FROM £88.99
Callaway · BIG Bertha OS Hybrid (2017)
NEW £74.99
USED FROM £74.99
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha B21 Hybrid | Callaway BIG Bertha OS Hybrid (2017) |
|---|---|---|
| Regular · 21° · Used | 2 retailers · from £88.99 at Golf Clubs 4 Cash → | — |
| Regular · 19° · Left-hand · Used | 1 retailer · from £99.95 at Replay Golf → | — |
| Senior · 19° · Used | 1 retailer · from £109.99 at Golf Clubs 4 Cash → | — |
| Regular · 25° · Used | — | 1 retailer · from £74.99 at The Second Hand Golf Shop → |
| Senior · 28° · Left-hand · Used | — | 1 retailer · from £91.99 at Golf Clubs 4 Cash → |
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Common questions about the Callaway BIG Bertha B21 Hybrid vs Callaway BIG Bertha OS Hybrid (2017)
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.