Compare / bags
Live · checked today · 4 UK retailers tracked
Sun Mountain E4.5 H2NO Bag vs Sun Mountain Eclipse E3.5 Bag
Quick verdict
Checked daily across 4 UK retailers
Price and availability verdict
Sun Mountain E4.5 H2NO Bag is currently £319, while Sun Mountain Eclipse E3.5 Bag is currently £189. Deal scores are Sun Mountain Eclipse E3.5 Bag 48/100; against tracked history, Sun Mountain E4.5 H2NO Bag is 10% above its lowest tracked price and Sun Mountain Eclipse E3.5 Bag is at its lowest tracked price. Sun Mountain E4.5 H2NO Bag is currently available from 1 UK retailer, versus 3 for Sun Mountain Eclipse E3.5 Bag.
Deal intelligence
Should you buy now, or wait?
The Sun Mountain Eclipse E3.5 Bag is at its lowest tracked price today. The Sun Mountain E4.5 H2NO Bag has more room: its tracked low is £289.
Sun Mountain · E4.5 H2NO Bag
Not enough data yet
Today £319 · typical £319 · lowest £289
On sale 1 time in the last 3 months
Sun Mountain · Eclipse E3.5 Bag
Fair price today
Today £189 · typical £189 · lowest £189
Early data: under 30 days tracked, treat as provisional.
Head to head
Category leaders, from the data on this page
- Cheapest new Eclipse E3.5 Bag £189 vs £319
- Closest to its tracked low Eclipse E3.5 Bag 0% above vs 10%
- Most retailers in stock Eclipse E3.5 Bag 3 vs 1
Where to buy
4 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.
Sun Mountain · E4.5 H2NO Bag
↓ £10
since 9 April 2026
Lowest £289 on 25 April 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 Sun Mountain E4.5 H2NO Bag vs Sun Mountain Eclipse E3.5 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.