Compare / bags
Live · checked today · 3 UK retailers tracked
Sun Mountain H2NO Bag vs Vessel Sunday IV Bag
Quick verdict
Checked daily across 3 UK retailers
Price and availability verdict
Sun Mountain H2NO Bag is currently £309, while Vessel Sunday IV Bag is currently £309. Against tracked history, Sun Mountain H2NO Bag is 673% above its lowest tracked price and Vessel Sunday IV Bag is at its lowest tracked price. Sun Mountain H2NO Bag is currently available from 1 UK retailer, versus 2 for Vessel Sunday IV Bag.
Deal intelligence
Should you buy now, or wait?
The Vessel Sunday IV Bag is at its lowest tracked price today. The Sun Mountain H2NO Bag has more room: its tracked low is £39.95.
Sun Mountain · H2NO Bag
Not enough data yet
Today £309 · typical £299 · lowest £39.95
On sale 1 time in the last 4 months
Vessel · Sunday IV Bag
Not enough data yet
Today £309 · typical £309 · lowest £309
Head to head
Category leaders, from the data on this page
- Closest to its tracked low Sunday IV Bag 0% above vs 673%
- Most retailers in stock Sunday IV Bag 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.
Sun Mountain · H2NO Bag
No change
since 14 March 2026
Lowest £39.95 on 3 June 2026
Vessel · Sunday IV Bag
No change
since 10 July 2026
Lowest £309 on 10 July 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 H2NO Bag vs Vessel Sunday IV 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.