Compare / bags
Live · checked today · 5 UK retailers tracked
Ben Sayers Hydra PRO Bag vs Sun Mountain Eclipse 3.5 Bag
Quick verdict
Checked daily across 5 UK retailers
Price and availability verdict
Ben Sayers Hydra PRO Bag is currently £119, while Sun Mountain Eclipse 3.5 Bag is currently £189.95. Deal scores are Ben Sayers Hydra PRO Bag 56/100; against tracked history, Ben Sayers Hydra PRO Bag is 19% above its lowest tracked price and Sun Mountain Eclipse 3.5 Bag is at its lowest tracked price. Ben Sayers Hydra PRO Bag is currently available from 4 UK retailers, versus 2 for Sun Mountain Eclipse 3.5 Bag.
Deal intelligence
Should you buy now, or wait?
The Sun Mountain Eclipse 3.5 Bag is at its lowest tracked price today. The Ben Sayers Hydra PRO Bag has more room: its tracked low is £99.95.
Ben Sayers · Hydra PRO Bag
Fair price today
Today £119 · typical £119 · lowest £99.95
On sale 2 times in the last 4 months
Sun Mountain · Eclipse 3.5 Bag
Not enough data yet
Today £189.95 · typical £199 · lowest £189
Head to head
Category leaders, from the data on this page
- Cheapest new Hydra PRO Bag £119 vs £189.95
- Closest to its tracked low Eclipse 3.5 Bag 1% above vs 19%
- Most retailers in stock Hydra PRO Bag 4 vs 2
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.
Ben Sayers · Hydra PRO Bag
↓ £10.95
since 14 March 2026
Lowest £99.95 on 3 April 2026
Sun Mountain · Eclipse 3.5 Bag
↓ £9.05
since 14 March 2026
Lowest £189 on 23 June 2026
Waiting for a better price?
Set a free alert and we’ll email you when either drops to your target.
Related bags comparisons
More head-to-head price checks
Common questions about the Ben Sayers Hydra PRO Bag vs Sun Mountain Eclipse 3.5 Bag
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.