Skip to content
53

knie

Worth a look

Shows low returns (0.8%), but a small market ($36K/yr) keeps it on the watch list.

Market size 9Growth 23Conversion 19Competition 66Returns 96Price range 84Avg price 95Brand share 80Review moat 25Quality gap 82

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Avg price

Incredible€24.99

avg listing price — sweet spot $15–$100

Price range

Great€6.16–€104.47

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Great55%

top-5 brand share — no brand owns this niche

Competition

Good45%

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

Review moat

Bad4,284.16

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-4.9%

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

Conversion

Bad1.5%

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

Market size

Bad€36K

€36K/yr · 94K searches

According to Flapen's Amazon Germany niche tracking, knie is a €36K/yr Amazon Germany market (94K searches/yr). The top 5 brands hold 55% of demand. Verdict: Worth a look — 53/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

knie market data

Units sold / yr
2K–2K
avg 0–100/product
Revenue / yr
€37K–€50K
units × avg price
Conversion rate
1.5%
Avg BSR
#50
Page quality
0%
Prime
97%
Sponsored
100%
Out of stock
5.3%
Avg brand age
41 months
Avg seller age
184 days

Competition & brand share

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

Brands

32 falling

Sellers

49

Top-5 brand share

55%

Top 20: 89%

Top-5 click share

45%

Top 20: 84%

Open market

39%

  • FORTHiQ20%
  • MQUPIN11%
  • 5kind clinical skincare9%
  • Comfytemp8%
  • COMFIER6%
  • ANAMPION5%

Demand & seasonality

Weekly Amazon search volume, last 83 weeks — -4.9% search growth over the last 90 days.
4K3KSpike '25Holiday '25DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

No pronounced peak months · busiest ÷ quietest = 1.4×

Top knie search terms

  • knie36K/yr
  • knieschmerzen22K/yr
  • knie schmerzen13K/yr
  • arthrose knie11K/yr
  • knee12K/yr
All search terms

Top knie 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%€5K20%€7K1101001K10K100K 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 knie

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

What buyers love

Qualität insgesamt16%

“Super Produkt”

Gelenkschmerzen15%

“Beste Knieschmerzpflaster”

Geruch7%

“Angenehmer Duft”

Komfort insgesamt6%

“Wohltuend”

beworben Vs Tatsächliches Produkt6%

“Produkt Info”

Effizienz5%

“Wirkt”

Gesamtgröße4%

“Passt”

Benutzerfreundlichkeit4%

“Gut anzuwenden”

Linderung von Muskelschmerzen3%

“Diese Creme hilft gerade im höheren Alter der Jugend wunderbar an den verschiedensten Stellen des gesamten Bewegungsapparates unseres Körpers immer”

Preis-Leistungs-Verhältnis3%

“fairer Preis”

What buyers complain about

Funktionalität insgesamt13%

“NULL WIRKUNG”

Preis-Leistungs-Verhältnis8%

“Geldverschwendung”

Schmerzlinderung – insgesamt7%

“Habe seit längerer Zeit Schmerzen in den Händen”

Geruch6%

“Stinkt erbärmlich”

Haftung/Klebrigkeit6%

“schwer anzubringen weil das zu dünne Material bei Berührung miteinander verklebt.”

Gesamtgröße5%

“Passt nicht”

Haltbarkeit5%

“Hält nicht lange”

Gelenkschmerzen4%

“Arthrose an den Händen”

Qualität insgesamt3%

“Müll”

beworben Vs Tatsächliches Produkt3%

“Irreführende Produktbeschreibung - nicht so rein wie beworben”

Top return reasons

Gesamtgröße63%
Funktionalität insgesamt8%
Gelenkschmerzen5%
Komfort insgesamt3%
Qualität insgesamt2%
Griff2%
beworben Vs Tatsächliches Produkt2%
Heizung1%
Benutzerfreundlichkeit1%
Geruch1%

Common questions

Is knie profitable to sell on Amazon Germany?
The niche generates €36K/yr across 37 tracked products. 4 of 9 products launched in the last 360 days are still selling. 90-day search growth is -4.9%. Flapen's verdict: Worth a look (53/100).
How competitive is the knie niche?
32 brands and 49 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 55% of demand.
What do buyers complain about in knie?
Top complaints mined from reviews: Funktionalität insgesamt, Preis-Leistungs-Verhältnis, Schmerzlinderung – insgesamt. The return rate is 0.8%.
When does demand for knie peak?
Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the knie niche?
Listings span €6.16–€104.47; the average listing price is €24.99 (sweet spot $15–$100). The average incumbent carries 4,284 reviews — the moat a new listing must climb.