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Live · checked today · 3 UK retailers tracked
Callaway BIG Bertha B21 Hybrid vs Mizuno MX FLI HI Hybrid
Quick verdict
Checked daily across 3 UK retailers
Price and availability verdict
Callaway BIG Bertha B21 Hybrid is currently £84.95 used, while Mizuno MX FLI HI Hybrid is currently £33.95 used. Against tracked history, Callaway BIG Bertha B21 Hybrid is at its lowest tracked price and Mizuno MX FLI HI Hybrid is 13% above its lowest tracked price. Both are currently available from 2 UK retailers.
Callaway
BIG Bertha B21 Hybrid
£84.95 used
↓ £7.50 7 days
14% below usualat Replay Golf
Deal intelligence
Should you buy now, or wait?
The Callaway BIG Bertha B21 Hybrid is at its lowest tracked price today. The Mizuno MX FLI HI Hybrid has more room: its tracked low is £29.95.
Callaway · BIG Bertha B21 Hybrid
Not enough data yet
Today £84.95 · typical £92.45 · lowest £84.95
On sale 1 time in the last 3 months
Mizuno · MX FLI HI Hybrid
Not enough data yet
Today £33.95 · typical £34.95 · lowest £29.95
Head to head
Category leaders, from the data on this page
- Cheapest new MX FLI HI £33.95 vs £84.95
- Closest to its tracked low BIG Bertha B21 0% above vs 13%
- Cheapest used MX FLI HI from £33.95 vs £84.95
Specification differences
Published product specifications
| Specification | Callaway BIG Bertha B21 Hybrid | Mizuno MX FLI HI Hybrid |
|---|---|---|
| Release year | 2021 | 2020 |
Where to buy
3 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 Hybrid
↓ £35
since 13 April 2026
Lowest £84.95 on 18 August 2026
Mizuno · MX FLI HI Hybrid
↓ £1
since 19 April 2026
Lowest £29.95 on 29 April 2026
New vs used
From used listings we track
Callaway · BIG Bertha B21 Hybrid
NEW £84.95
USED FROM £84.95
Mizuno · MX FLI HI Hybrid
NEW £33.95
USED FROM £33.95
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha B21 Hybrid | Mizuno MX FLI HI Hybrid |
|---|---|---|
| Regular · 19° · Left-hand · Used | 1 retailer · from £84.95 at Replay Golf → | — |
| Regular · 21° · Used | 1 retailer · from £89.99 at Nearly New Golf Clubs → | — |
| Regular · 20° · Left-hand · Used | — | 1 retailer · from £42.99 at UK Used Golf Clubs → |
| Regular · 23° · Used | — | 1 retailer · from £33.95 at Replay Golf → |
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Common questions about the Callaway BIG Bertha B21 Hybrid vs Mizuno MX FLI HI Hybrid
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.