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55

wassermelder

Worth a look

Shows a sweet-spot price point ($33.50 avg), but soft demand (-11.3% this quarter) keeps it on the watch list.

Market size 51Growth 19Conversion 41Competition 73Returns 85Price range 21Avg price 95Brand share 62Review moat 62Quality gap 63

Avg price

Incredible€33.50

avg listing price — sweet spot $15–$100

Returns

Great1.5%

return rate — above 5% kills the launch gate

Competition

Good41%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Good68%

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

Review moat

Good1,034.69

avg incumbent reviews — the moat a new listing must climb

Market size

Good€301K

€301K/yr · 272K searches

Conversion

Okay3.3%

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

Price range

Bad€5.63–€410.35

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

Growth

Bad-11.3%

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

According to Flapen's Amazon Germany niche tracking, wassermelder is a €301K/yr Amazon Germany market (272K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 55/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

wassermelder market data

Units sold / yr
13K–15K
avg 250–500/product
Revenue / yr
€419K–€503K
units × avg price
Conversion rate
3.3%
Avg BSR
#41
Page quality
0%
Prime
97%
Sponsored
83%
Out of stock
6.8%
Avg brand age
46 months
Avg seller age
196 days

Competition & brand share

The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 falling

Sellers

74

Top-5 brand share

68%

Top 20: 99%

Top-5 click share

41%

Top 20: 85%

Open market

28%

  • X-Sense27%
  • SwitchBot13%
  • Geevon13%
  • ABUS10%
  • SEBSON6%
  • WIOONI5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -11.3% search growth over the last 90 days.
9K7KPrime Day '24Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top wassermelder search terms

  • wassermelder103K/yr
  • wassersensor31K/yr
  • wassermelder boden25K/yr
  • wassermelder wlan29K/yr
  • wasserwächter9K/yr
  • wassersensor wlan8K/yr
  • wasserlecksensor6K/yr
  • wassermelder mit app6K/yr
  • wasserwarner6K/yr
  • wasser sensor6K/yr
All search terms

Top wassermelder 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%3%€9K6%€18K9%€27K12%€36K101001K10K 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 wassermelder

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

What buyers love

Montage/Installation14%

“Super Installation”

Qualität insgesamt13%

“Top Qualität, sehr einfache Handhabung beim Einrichten”

Preis-Leistungs-Verhältnis9%

“Top Preis/Leistung”

Wasserbeständigkeit7%

“Super für Aquarianer”

beworben Vs Tatsächliches Produkt6%

“Macht absolut was er soll”

Benutzerfreundlichkeit6%

“Easy”

Wecker/Timer-Genauigkeit6%

“Funktioniert super erkennt Feuchtigkeit sofort hörbare Alarm per WLAN mit Handy Nachricht sehr zu empfehlen”

Fühler6%

“X-Sense Smart Wassermelder, alles prima, z,Zt”

Konnektivität – insgesamt6%

“Einfach in das bestehende System einbinden”

Effizienz2%

“Funktioniert super”

What buyers complain about

Geräuschpegel17%

“Zu leiser Alarmton”

Konnektivität – insgesamt16%

“WLAN Kontaktprobleme”

Haltbarkeit8%

“Nach 2 Monaten defekt”

Akkulaufzeit6%

“Keine 10 Jahres Batterie”

Funktionalität insgesamt4%

“Hält nicht was es verspricht”

Anleitung/Benutzerhandbuch/Fehlerbehebung4%

“Die Installation ging nach anfänglichen kleinen Verständigungs Problemen zwischen der winzigen Betriebsanleitung und mir dann doch relativ schnell vonstatten”

Wasserbeständigkeit4%

“Erst unter Wasser funktioniert die also nicht ok”

Qualität insgesamt3%

“Miserable Qualität - Elektroschrott”

Auslaufsicher2%

“Bei einem Wasserwechsel ist mir der Schlauch aus dem Becken gerutscht”

Preis-Leistungs-Verhältnis2%

“Unbezahlbar”

Top return reasons

Konnektivität – insgesamt26%
Kompatibilität – insgesamt19%
Funktionalität insgesamt14%
Gesamtgröße8%
Defekt Material/Teile6%
Wecker/Timer-Genauigkeit6%
beworben Vs Tatsächliches Produkt4%
Geräuschpegel3%
Montage/Installation2%
Wasserbeständigkeit2%

Common questions

Is wassermelder profitable to sell on Amazon Germany?
The niche generates €301K/yr across 36 tracked products. 2 of 8 products launched in the last 360 days are still selling. 90-day search growth is -11.3%. Flapen's verdict: Worth a look (55/100).
How competitive is the wassermelder niche?
21 brands and 74 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in wassermelder?
Top complaints mined from reviews: Geräuschpegel, Konnektivität – insgesamt, Haltbarkeit. The return rate is 1.5%.
When does demand for wassermelder peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the wassermelder niche?
Listings span €5.63–€410.35; the average listing price is €33.50 (sweet spot $15–$100). The average incumbent carries 1,035 reviews — the moat a new listing must climb.