Compare / hybrid
Live · checked today · 3 UK retailers tracked
Callaway BIG Bertha B21 Hybrid vs Under Armour Halo Hybrid
Quick verdict
Checked daily across 3 UK retailers
Price and availability verdict
Callaway BIG Bertha B21 Hybrid is currently £84.95 used, while Under Armour Halo Hybrid is currently £89.95. Deal scores are Under Armour Halo Hybrid 8/100; against tracked history, Callaway BIG Bertha B21 Hybrid is at its lowest tracked price and Under Armour Halo Hybrid is 18% above its lowest tracked price. Callaway BIG Bertha B21 Hybrid is currently available from 2 UK retailers, versus 1 for Under Armour Halo Hybrid.
Deal intelligence
Should you buy now, or wait?
The Callaway BIG Bertha B21 Hybrid is at its lowest tracked price today. The Under Armour Halo Hybrid has more room: its tracked low is £76.30.
Callaway · BIG Bertha B21 Hybrid
Not enough data yet
Today £84.95 · typical £97.45 · lowest £84.95
On sale 1 time in the last 3 months
Under Armour · Halo Hybrid
High vs its history
Today £89.95 · typical £76.30 · lowest £76.30
Early data: under 30 days tracked, treat as provisional.
Head to head
Category leaders, from the data on this page
- Cheapest new BIG Bertha B21 £84.95 vs £89.95
- Closest to its tracked low BIG Bertha B21 0% above vs 18%
- Most retailers in stock BIG Bertha B21 2 vs 1
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
Under Armour · Halo Hybrid
No change
since 26 July 2026
Lowest £76.30 on 28 July 2026
New vs used
From used listings we track
Callaway · BIG Bertha B21 Hybrid
NEW £84.95
USED FROM £84.95
Availability by build
Which configurations are in stock right now
| Build | Callaway BIG Bertha B21 Hybrid | Under Armour Halo 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 → | — |
| Standard | — | 1 retailer · from £89.95 at Affordable Golf → |
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Common questions about the Callaway BIG Bertha B21 Hybrid vs Under Armour Halo 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.