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One Piece

Fail

Buyers convert on only 0.9% of searches, so One Piece is a Fail.

Flapen Score
49
49 / 100
Top 45% of 2,461 Fashion niches · +1 vs the category median of 48
Market size
£186K/yr1.2M searches / yr
90-day growth
-6.4%search demand this quarter
Competition
29%top-5 click share · 16 brands · 204 sellers

Flapen Score

One Piece against its category

The dotted line is the Fashion average. Past it, One Piece is stronger. Inside it, weaker.

49Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The One Piece market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for One Piece 1.2M times last year and spent an estimated £186K. The top 5 brands take 84% of clicks. Demand peaks in Nov–Dec. Flapen scores it 49 out of 100, a Fail.

01 · Demand

An estimated 0.9% of those searches ended in a purchase.

Shoppers searched for this 1.2M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 0.9% of those searches ended in a purchase. Searches in the last 90 days moved -6.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £186K a year.

Searches, last 12 months
1.2M
Growth, 90 days vs prior 90
-6.4%
Conversion, latest week
0.9%
Market size, estimated
£186Ka year
Peak month
December2.8× the quietest month
Top search term
one piece1.0M searches a year

02 · Price

A sale here is worth £16.71.

Listings sell for £16.71 on average, from £4.17 to £175.41. Amazon reports units sold in ranges. This niche sold 15K to 20K a year. The average listing sells 100 to 250 of them. At £16.71 that is £2K to £4K a year per listing.

Average price
£16.71inside the $15 to $100 sweet spot
Price range
£4.17–£175.41
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
15K–20K
Units per listing a year
100–250
Revenue per listing a year
£2K–£4K
Returns
0.7%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

84% of listings pay for placement with sponsored ads. 92% ship with Prime. On an average day, 9.6% of listings are out of stock. The average listing ranks #199 within Boys. It carries 952 reviews at 4.57 stars, so a new listing needs social proof before a better product.

Sponsored listings
84%
Prime listings
92%
Out of stock, average day
9.6%
Average rank
#199in Boys
Average rating
4.57 starsAmazon United Kingdom average 4.36 stars
Average reviews
952per listing
Listings tracked
61

04 · Newcomers

7 of last year's 18 launches cleared the first-year sales bar.

18 products launched here in the last 12 months. 7 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 29 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
18
Successful launches
7Amazon's first-year sales bar
Average brand age
29 months

Products

Top One Piece products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 23, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 29% of clicks, no more. An open shelf where new products get seen.

£0£6K£11K£17K£22K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

16 falling

Sellers

204

Est. top-5 brand share

84%

Top 20: 100%

Est. top-5 click share

29%

Top 20: 66%

Open market

12%

  • One Piece37%
  • Get Trend21%
  • Funko15%
  • Simon & Schuster6%
  • LEGO5%
  • Paladone4%
  • Open — no brand owns it (10 brands, 12%)

Demand

One Piece search demand

Weekly searches over the year, seasonality beneath. Pick a range.

50K30KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 2.8×

Search terms

Top One Piece search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • one piece1.0M/yr
  • one piece merch53K/yr
  • one piece anime29K/yr
  • one piece gifts29K/yr
  • one piece merchandise21K/yr
  • one peice15K/yr
  • one piece accessories8K/yr
  • one piec9K/yr
  • one piece gift8K/yr
  • onepiece8K/yr

Reviews and returns

What reviews say buyers love and hate about One Piece

We read the reviews and the return reasons for every product selling here.

23%of positive reviews mention “Quality-Overall”
14%of negative reviews mention “Quality-Overall”
0.7%of orders come back
“Nice cup, terrible quality”
A buyer, on “Quality-Overall”14% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

19 topics

NegativePositive

FAQ

Common One Piece questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data