Skip to content
40

zahnheld

Skip it

A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 51Growth 1Conversion 72Competition 0Returns 57Price range 95Avg price 90Brand share 0Review moat 22Quality gap 91

Price range

Incredible€22.22–€75.06

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

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Avg price

Great€58.52

avg listing price — sweet spot $15–$100

Conversion

Good6.7%

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

Returns

Good2.7%

return rate — above 6% kills the launch gate

Market size

Good€291K

€291K/yr · 74K searches

Review moat

Bad9,828.2

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-48.5%

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

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

8

Top-5 brand share

100%

Open market

0%

  • WonderSmile63%
  • Zahnheld26%
  • SWZEC7%
  • COSLUS4%
  • Open — no brand owns it (0%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%€44K30%€87K45%€131K60%€174K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 5 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -48.5% search growth over the last 90 days.
5K4KPrime Day '24Spike '24Black Friday '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Sep · busiest ÷ quietest = 2.3×

Reviews

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

What buyers love

Mundhygiene25%

“Munddusche Wondersmile”

Qualität insgesamt16%

“Excellente Produkte”

Benutzerfreundlichkeit9%

“absolut Easy”

Einfache Reinigung6%

“Easy zu reinigen”

beworben Vs Tatsächliches Produkt6%

“Tut was sie soll”

Preis-Leistungs-Verhältnis5%

“Preisleistung super”

Akkulaufzeit4%

“Langer Akku, leichte Handhabung”

Design insgesamt3%

“Schönes Design”

Effizienz3%

“Funktion ist okay”

Aufladen2%

“Aufladen funktioniert mit langer Funktion”

What buyers complain about

Haltbarkeit21%

“Kurze Haltbarkeit”

Benutzerfreundlichkeit10%

“ist etwas unhandlich”

Aufladen7%

“Schade habe ich das Ladekabel irrtümlich entsorgt”

Akkulaufzeit5%

“Akku Probleme”

Mundhygiene5%

“Mundsusche”

Funktionalität insgesamt4%

“Funktioniert nicht”

Preis-Leistungs-Verhältnis3%

“70 Euro für nichts”

Gesamtgröße3%

“Die Öffnung des Wasserbehälters ist sehr eng”

Wasserbeständigkeit3%

“Sehr nasse Angelegenheit”

Qualität insgesamt2%

“Müll”

Top return reasons

Funktionalität insgesamt18%
Gesamtgröße12%
Benutzerfreundlichkeit9%
Stärke5%
Aufladen5%
Zahnempfindlichkeit4%
Qualität insgesamt4%
Preis-Leistungs-Verhältnis4%
Mundhygiene3%
Wasserbeständigkeit3%