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51

mermaid

Worth a look

Shows low returns (0.8%), but soft demand (-2.0% this quarter) keeps it on the watch list.

Market size 33Growth 24Conversion 37Competition 67Returns 96Price range 29Avg price 40Brand share 68Review moat 42Quality gap 70

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Brand share

Good64%

top-5 brand share — brands hold most of the demand

Competition

Good45%

top-5 click share — leaders hold, buyers still browse

Review moat

Okay2,302.33

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay£10.84

avg listing price — sweet spot $15–$100

Conversion

Okay2.9%

search→purchase rate — share of searches ending in a sale

Market size

Okay£153K

£153K/yr · 478K searches

Price range

Okay£3.78–£19.66

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Bad-2.0%

90-day search growth — must beat 0% to launch

According to Flapen's Amazon United Kingdom niche tracking, mermaid is a £153K/yr Amazon United Kingdom market (478K searches/yr). The top 5 brands hold 64% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 51/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

mermaid market data

Units sold / yr
13K–15K
avg 100–250/product
Revenue / yr
£136K–£163K
units × avg price
Conversion rate
2.9%
Avg BSR
#127
Page quality
0%
Prime
100%
Sponsored
73%
Out of stock
5.5%
Avg brand age
28 months
Avg seller age
168 days

Competition & brand share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

Brands

25 falling

Sellers

163

Top-5 brand share

64%

Top 20: 94%

Top-5 click share

45%

Top 20: 82%

Open market

33%

  • Barbie25%
  • OSDUE23%
  • iFunLong6%
  • Catalonia Classy5%
  • Pets Alive4%
  • Mattel3%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -2.0% search growth over the last 90 days.
15K10KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 1.9×

Top mermaid search terms

  • mermaid toys141K/yr
  • mermaid126K/yr
  • mermaids51K/yr
  • mermaid doll39K/yr
  • mermaid toy20K/yr
  • mermaid bath toy24K/yr
  • mermaid gifts for girls14K/yr
  • mermaid gifts12K/yr
  • mermaid dolls12K/yr
  • mermaid bath toys7K/yr
All search terms

Top mermaid 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%£15K20%£31K30%£46K40%£61K1101001K10K100K Reviews — right = deep review moat Market 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.

What buyers say about mermaid

What buyers praise and complain about, mined from review topics.

What buyers love

Gifting Purpose19%

“Christmas Present”

Fun/Entertainment Experience18%

“Really fun toy”

Quality-Overall16%

“So well made”

Value For Money15%

“Good value for money”

Color12%

“bright colours”

Advertised Vs Actual Product4%

“As expected”

Soft Feel3%

“I was pleasantly surprised by the quality—theyre soft, well made, and have held up really well”

Size-Overall2%

“Suitability”

Strength2%

“sturdy enough for everyday play”

Design-Overall1%

“Beautifully crafted doll”

What buyers complain about

Quality-Overall24%

“Very bad quality the tail keep falling out it was a gift for my doughter she was very upset”

Size-Overall20%

“the earrings are too long”

Functionality-Overall8%

“Dont work”

Durability5%

“they all broke within days”

Add-Ons/Attachments3%

“Fin does not attach”

Color3%

“Doesn't change colour”

Defective Material/Parts3%

“Managed to unscrew and fix”

Material Quality3%

“Cheap material”

Value For Money3%

“Not worth full price”

Remote Control3%

“It wouldn't respond to the remote”

Top return reasons

Size-Overall36%
Gifting Purpose11%
Quality-Overall11%
Defective Material/Parts6%
Functionality-Overall6%
Value For Money5%
Durability3%
Material Quality3%
Advertised Vs Actual Product3%
Color3%

Common questions

Is mermaid profitable to sell on Amazon United Kingdom?
The niche generates £153K/yr across 33 tracked products. 2 of 8 products launched in the last 360 days are still selling. 90-day search growth is -2.0%. Flapen's verdict: Worth a look (51/100).
How competitive is the mermaid niche?
25 brands and 163 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 64% of demand.
What do buyers complain about in mermaid?
Top complaints mined from reviews: Quality-Overall, Size-Overall, Functionality-Overall. The return rate is 0.8%.
When does demand for mermaid peak?
Demand peaks in Nov–Dec; the busiest month runs 1.9× the quietest.
What does it cost to enter the mermaid niche?
Listings span £3.78–£19.66; the average listing price is £10.84 (sweet spot $15–$100). The average incumbent carries 2,302 reviews — the moat a new listing must climb.