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54

hai

Worth a look

Shows low returns (1.1%), but weak search conversion (0.4%) keeps it on the watch list.

Market size 10Growth 51Conversion 5Competition 68Returns 94Price range 84Avg price 86Brand share 71Review moat 59Quality gap 62

Returns

Great1.1%

return rate — above 5% kills the launch gate

Avg price

Great€19.50

avg listing price — sweet spot $15–$100

Price range

Great€3.12–€88.38

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

Brand share

Good62%

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

Competition

Good44%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Good1,157.24

avg incumbent reviews — the moat a new listing must climb

Growth

Good+22.3%

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

Market size

Bad€39K

€39K/yr · 516K searches

Conversion

Bad0.4%

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

According to Flapen's Amazon Germany niche tracking, hai is a €39K/yr Amazon Germany market (516K searches/yr). The top 5 brands hold 62% of demand. Verdict: Worth a look — 54/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

hai market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
€49K–€59K
units × avg price
Conversion rate
0.4%
Avg BSR
#749
Page quality
0%
Prime
100%
Sponsored
85%
Out of stock
10.9%
Avg brand age
33 months
Avg seller age
185 days

Competition & brand share

The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.

Brands

26 falling

Sellers

301

Top-5 brand share

62%

Top 20: 94%

Top-5 click share

44%

Top 20: 79%

Open market

34%

  • LEGO29%
  • QUSLLIS15%
  • Dedoles8%
  • SAGUARO6%
  • Mnking4%
  • INSOON3%

Demand

Weekly Amazon search volume, last 28 weeks — +22.3% search growth over the last 90 days.
13K8KSpike '26Jan '26Feb '26Mar '26Mar '26Apr '26May '26Jun '26

Top hai search terms

  • hai430K/yr
  • lego hai24K/yr
  • lego fisch15K/yr
  • hai deko10K/yr
  • haifisch9K/yr
  • lego meerestiere8K/yr
  • lego wal5K/yr
  • lego fische6K/yr
  • hai lego4K/yr
  • lego orca4K/yr
All search terms

Top hai 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%5%€2K10%€4K15%€6K20%€8K101001K10K100K 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 hai

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

What buyers love

Spaß/Unterhaltungserlebnis16%

“Schönes Spielzeug”

Qualität insgesamt12%

“Beste Qualität”

Geschenk Zweck11%

“Cooles geschenk”

Montage/Installation8%

“Super und einfach vom Aufbau und sieht im Regal sehr schön aus”

Preis-Leistungs-Verhältnis8%

“Preis super”

Design insgesamt7%

“Cool gemacht”

Sammlungsobjekte5%

“Schönes Lego Set”

Anleitung/Benutzerhandbuch/Fehlerbehebung4%

“mit kleinen Hilfestellungen gut aufzubauen.”

beworben Vs Tatsächliches Produkt4%

“Hält was es verspricht”

Kreativität4%

“Ganzen schön kreativ gemacht”

What buyers complain about

Gesamtgröße14%

“Wirklich groß - habe ich unterschätzt”

Haltbarkeit8%

“Teile halten schlecht, fallen auseinander”

Qualität insgesamt8%

“Müll”

Montage/Installation7%

“noch nicht zusammen gebaut”

Preis-Leistungs-Verhältnis7%

“nicht mal 1€ wert”

Stärke7%

“Einziger Negativpunkt: Einige Teile halten nicht so gut zusammen”

Defekt Material/Teile3%

“Teile halten schlecht, fallen auseinander”

Materialqualität3%

“Das Material ist viel zu hart”

Farbe3%

“Die Farbe geht irgendwie schon weg”

Spaß/Unterhaltungserlebnis2%

“hatte leider keinen Spaß an diesem Set.”

Top return reasons

Gesamtgröße28%
Geschenk Zweck12%
Defekt Material/Teile11%
Materialqualität7%
Funktionalität insgesamt4%
beworben Vs Tatsächliches Produkt4%
Lackqualität3%
Preis-Leistungs-Verhältnis2%
Qualität insgesamt2%
Produktzustand2%

Common questions

Is hai profitable to sell on Amazon Germany?
The niche generates €39K/yr across 41 tracked products. 5 of 12 products launched in the last 360 days are still selling. 90-day search growth is +22.3%. Flapen's verdict: Worth a look (54/100).
How competitive is the hai niche?
26 brands and 301 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 62% of demand.
What do buyers complain about in hai?
Top complaints mined from reviews: Gesamtgröße, Haltbarkeit, Qualität insgesamt. The return rate is 1.1%.
What does it cost to enter the hai niche?
Listings span €3.12–€88.38; the average listing price is €19.50 (sweet spot $15–$100). The average incumbent carries 1,157 reviews — the moat a new listing must climb.