---
title: "Water 330ml — £66K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/grocery/water-330ml"
last_updated: "2026-07-31T13:20:49.259Z"
locale: en
meta:
description: "Niche score 55/100 · £66K/yr market · 80K searches/yr · £7.88 avg price. A small market ($66K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · £66K/yr market · 80K searches/yr · £7.88 avg price. A small market ($66K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Water 330ml — £66K/yr Amazon UK Niche (2026) - Flapen"
---
# **water 330ml**
**Worth a look**
Shows low returns (0.0%), but a small market ($66K/yr) keeps it on the watch list.
Market size 16Growth 66Conversion 89Competition 61Returns 100Price range 35Avg price 22Brand share 68Review moat 43Quality gap 32
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****10.4%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Good****64%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+44.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Good****49%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,226.72**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****£1.81–£22.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Bad****£7.88**
avg 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 ~~](https://flapen.com/research/methodology)
## **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.
3K2KHoliday '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26 seasonDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/uk/grocery/water-330ml/trend)
## **Top water 330ml search terms**
- **small bottles of water**18K/yr+70.9%6.7% conv. - **330ml water**8K/yr+99.5%10.5% conv. - **avant water**11K/yr+20.6%6.1% conv. - **water 330ml**8K/yr+59.8%11.3% conv. - **small water**8K/yr+39.2%6.8% conv. - **mini water bottles**6K/yr+24.5%4.0% conv. - **mini water**5K/yr+21.5%7.7% conv. - **mini bottles of water**4K/yr+37.3%5.5% conv. - **small bottled water**4K/yr+46.1%5.8% conv. - **250ml water**4K/yr+20.7%5.3% conv. [**All search terms **](https://flapen.com/research/uk/grocery/water-330ml/search-terms)
## **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.
0%10%£7K20%£13K30%£20K40%£26K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Avant Still Water (Avant 200mlx12)**AVANT**£3.80**4.7★549 rev](https://www.amazon.co.uk/dp/B0D2YB3YZW) [2**Elm Spring Mineral Water Still Unflavored PET 24x330ml Sports Cap**Elm Spring**£5.77**4.5★318 rev](https://www.amazon.co.uk/dp/B0DP4R88NJ) [3**Avant Still Water (Avant 330mlx24)**AVANT**£6.89**4.7★549 rev](https://www.amazon.co.uk/dp/B0D2Y7KQ2X) [4**Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12**Generic**£8.31**5.0★8 rev](https://www.amazon.co.uk/dp/B0GRJV3N41) [5**Highland Spring Still Spring Water Handy Bottles 12 x 330ml**Highland Spring**£2.82**4.7★504 rev](https://www.amazon.co.uk/dp/B016IPL0CC)
**~~View all top sellers →~~**
### **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**£19.78**4 rev2mo ago](https://www.amazon.co.uk/dp/B0GZWNNZKR) [**Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12**Generic**£8.31**8 rev4mo ago](https://www.amazon.co.uk/dp/B0GRJV3N41) [**Nestle Pure Life Still Spring Water Sports Cap 10 x 330ml**Nestlé**£2.68**93 rev5mo ago](https://www.amazon.co.uk/dp/B0FHQJ7ZW7) [**Multipack 500ml Still Spring Water Compatible With Kirkland Spring Water Bulk Wholesale Deal Hydration Pack For Everyday Use (20x 500ml)**Senshi Japan**£9.65**155 rev11mo ago](https://www.amazon.co.uk/dp/B0FNMY434N) [**Voss 250ml x 12-100% RPET Premium Mineral Water Pure Still Water with Unique and Iconic Design**VOSS**£8.00**113 rev1y ago](https://www.amazon.co.uk/dp/B0DDKDJ5JL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**£19.78**4.1★**▲ 150%**](https://www.amazon.co.uk/dp/B0GZWNNZKR) [**Avant Natural Mineral Water High pH Low Sodium 100% Recyclable Bottles 200ml Pack of 12**Generic**£8.31**5.0★**▲ 91%**](https://www.amazon.co.uk/dp/B0GRJV3N41) [**Harrogate Spring Water | Spring Water - Still | 30 x 330ml**Harrogate Spring Water**£12.22**4.4★**▲ 83%**](https://www.amazon.co.uk/dp/B01MUQT9I6) [**Nestlé Pure Life Still Spring Water 10 x 33cl**Nestlé Pure Life**£2.29**4.7★**▲ 81%**](https://www.amazon.co.uk/dp/B014DEIHYY) [**Evian Still Mineral Water 330 ml (Pack of 24)**evian**£14.02**4.6★**▲ 58%**](https://www.amazon.co.uk/dp/B07JFH3QVK)
**~~View all trending →~~**
## **What buyers say about water 330ml**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**36%
*“Excellent value”*
**Taste-Overall**20%
*“The water tastes really good”*
**Quality-Overall**12%
*“Excellent product”*
**Size-Overall**7%
*“Happy with the size”*
**Ease Of Use**5%
*“Very handy”*
**Leak-Proof**3%
*“don't leak”*
**Portability**2%
*“Great for portability”*
**Freshness**2%
*“Crisp and fresh”*
**Advertised Vs Actual Product**2%
*“Does the job”*
**Recycle/Reuse**2%
*“Bottles can be reusable”*
### **What buyers complain about **
**Taste-Overall**21%
*“Bad taste”*
**Value For Money**17%
*“overpriced”*
**Quality-Overall**9%
*“Very poor quality bottles”*
**Strength**6%
*“bottles are very thin and flimsy”*
**Advertised Vs Actual Product**6%
*“Picture is misleading”*
**Dilute/Watery**6%
*“It is water not sonthingelse”*
**Size-Overall**4%
*“Too small”*
**Salt Content**3%
*“Salty taste”*
**Thickness**3%
*“Slightly thicker bottles”*
**Ease Of Use**2%
*“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.
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