water 330ml
Worth a lookShows low returns (0.0%), but a small market ($66K/yr) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great10.4%search→purchase rate — share of searches ending in a sale
Brand share
Good64%top-5 brand share — brands hold most of the demand
Growth
Good+44.8%90-day search growth — must beat 0% to launch
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Review moat
Okay2,226.72avg incumbent reviews — the moat a new listing must climb
Price range
Okay£1.81–£22.12cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Avg price
Bad£7.88avg listing price — sweet spot $15–$100
Market size
Bad£66K£66K/yr · 80K searches
According to Flapen's Amazon United Kingdom niche tracking, water 330ml is a £66K/yr Amazon United Kingdom market (80K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 55/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
water 330ml market data
- Units sold / yr
- 13K–15K
- avg 250–500/product
- Revenue / yr
- £99K–£118K
- units × avg price
- Conversion rate
- 10.4%
- Avg BSR
- #90
- Page quality
- 0%
- Prime
- 80%
- Sponsored
- 68%
- Out of stock
- 3.6%
- Avg brand age
- 54 months
- Avg seller age
- 179 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
17 rising
Sellers
99
Top-5 brand share
64%
Top 20: 100%
Top-5 click share
49%
Top 20: 93%
Open market
30%
- AVANT32%
- Elm Spring9%
- Highland Spring8%
- Aqua Carpatica8%
- evian8%
- Generic6%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +44.8% search growth over the last 90 days.Peak months: May, Jun, Jul · busiest ÷ quietest = 3.1×
Top water 330ml search terms
- small bottles of water18K/yr
- 330ml water8K/yr
- avant water11K/yr
- water 330ml8K/yr
- small water8K/yr
- mini water bottles6K/yr
- mini water5K/yr
- mini bottles of water4K/yr
- small bottled water4K/yr
- 250ml water4K/yr
Top water 330ml products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Avant Still Water (Avant 200mlx12)
AVANT£3.804.7★549 rev
Elm Spring Mineral Water Still Unflavored PET 24x330ml Sports Cap
Elm Spring£5.774.5★318 rev
Avant Still Water (Avant 330mlx24)
AVANT£6.894.7★549 rev
Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12
Generic£8.315.0★8 rev
Highland Spring Still Spring Water Handy Bottles 12 x 330ml
Highland Spring£2.824.7★504 rev
Newest
by launch date
Avant Natural Mineral Water Sports Cap Water Bottles 72 x 200ml Premium Still Mineral Drinking Water with Flip Top Sports Cap Small Portable Bottles for Kids Gym School Travel Office & Events
HCO£19.784 rev
Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12
Generic£8.318 rev
Nestle Pure Life Still Spring Water Sports Cap 10 x 330ml
Nestlé£2.6893 rev
Multipack 500ml Still Spring Water Compatible With Kirkland Spring Water Bulk Wholesale Deal Hydration Pack For Everyday Use (20x 500ml)
Senshi Japan£9.65155 rev
Voss 250ml x 12-100% RPET Premium Mineral Water Pure Still Water with Unique and Iconic Design
VOSS£8.00113 rev
Trending
90-day click momentumAvant Natural Mineral Water Sports Cap Water Bottles 72 x 200ml Premium Still Mineral Drinking Water with Flip Top Sports Cap Small Portable Bottles for Kids Gym School Travel Office & Events
HCO£19.784.1★
Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12
Generic£8.315.0★
Harrogate Spring Water | Spring Water - Still | 30 x 330ml
Harrogate Spring Water£12.224.4★
Nestlé Pure Life Still Spring Water 10 x 33cl
Nestlé Pure Life£2.294.7★
Evian Still Mineral Water 330 ml (Pack of 24)
evian£14.024.6★
What buyers say about water 330ml
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent value”
“The water tastes really good”
“Excellent product”
“Happy with the size”
“Very handy”
“don't leak”
“Great for portability”
“Crisp and fresh”
“Does the job”
“Bottles can be reusable”
What buyers complain about
“Bad taste”
“overpriced”
“Very poor quality bottles”
“bottles are very thin and flimsy”
“Picture is misleading”
“It is water not sonthingelse”
“Too small”
“Salty taste”
“Slightly thicker bottles”
“Bottle is difficult to hold as not firm enough”
Common questions
- Is water 330ml profitable to sell on Amazon United Kingdom?
- The niche generates £66K/yr across 25 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +44.8%. Flapen's verdict: Worth a look (55/100).
- How competitive is the water 330ml niche?
- 17 brands and 99 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 64% of demand.
- What do buyers complain about in water 330ml?
- Top complaints mined from reviews: Taste-Overall, Value For Money, Quality-Overall. The return rate is 0.0%.
- When does demand for water 330ml peak?
- Demand peaks in May–Jun–Jul; the busiest month runs 3.1× the quietest.
- What does it cost to enter the water 330ml niche?
- Listings span £1.81–£22.12; the average listing price is £7.88 (sweet spot $15–$100). The average incumbent carries 2,227 reviews — the moat a new listing must climb.