Is ninja coffee machine water filter profitable to sell on Amazon United Kingdom?

The niche generates £82K/yr across 8 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Skip it (38/100).

How competitive is the ninja coffee machine water filter niche?

7 brands and 8 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in ninja coffee machine water filter?

Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Material Quality. The return rate is 0.1%.

What does it cost to enter the ninja coffee machine water filter niche?

Listings span £6.05–£12.54; the average listing price is £9.11 (sweet spot $15–$100). The average incumbent carries 94 reviews — the moat a new listing must climb.

ninja coffee machine water filter

Skip it

Prices mostly outside the sweet spot ($6.05–$12.54) — this niche doesn't clear our bar today.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Incredible17.0%

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

Review moat

Incredible93.88

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay£9.11

avg listing price — sweet spot $15–$100

Market size

Bad£82K

£82K/yr · 53K searches

Growth

Bad-16.1%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Competition

Bad90%

top-5 click share — a locked-up shelf

Price range

Bad£6.05–£12.54

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

Signals Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, ninja coffee machine water filter is a £82K/yr Amazon United Kingdom market (53K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 38/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

ninja coffee machine water filter market data

Units sold / yr: 6K–8K; avg 750–1,000/product
Revenue / yr: £55K–£73K; units × avg price
Conversion rate: 17.0%
Avg BSR: #53
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 18 months
Avg seller age: 183 days

Competition & brand share

The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

90%

Top 20: 100%

Open market

MLKSI57%
TranRantic16%
SAIERTE9%
Hushtong7%
sumue5%
toijnhtk3%
Open — no brand owns it (1 brand, 3%)

Demand

Weekly Amazon search volume, last 43 weeks — -16.1% search growth over the last 90 days.

Open Trend

Top ninja coffee machine water filter search terms

ninja coffee machine water filter16K/yr -28.7%17.9% conv.
ninja cafe luxe water filter6K/yr +85.1%10.8% conv.
ninja luxe cafe water filter10K/yr -17.0%16.9% conv.
ninja coffee machine filter5K/yr +1.8%14.4% conv.
ninja water filter6K/yr -22.2%10.8% conv.
ninja water filter for coffee machine2K/yr -34.1%19.7% conv.
ninja filter coffee machine4K/yr -10.5%6.3% conv.
ninja coffee filter4K/yr -57.7%9.1% conv.

All search terms

Top ninja coffee machine water filter 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 8 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Water Filter Inserts for Ninja Luxe Cafe Accessories 12 Pack

MLKSI£10.324.6★441 rev

Tranrantic 8 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories

TranRantic£9.234.8★117 rev

SAIERTE 6 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories Replacement Activated Caborn Coffee Machine Accessories Compatible with Ninja Luxe Café Premier Espresso Machine

SAIERTE£8.054.5★46 rev

Water Filter Replacement Compatible with Ninja Coffee Machine Luxe Cafe and Espresso Machine ES601 Accessories - Charcoal Filtration Inserts (12 Pack Water Filters)

Hushtong£11.284.8★13 rev

10 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories Activated Carbon Filter for Coffee Machine Compatible with Ninja Luxe Café Premier Espresso Machine ES601UK & Pro Series ES701UK

sumue£7.933.8★5 rev

Newest

by launch date

8Pack Water Filter Inserts for Ninja Luxe Cafe Accessories Charcoal Replacement Filters for Ninja Luxe Cafe Premier Espresso Machine ES601UK ES701UK

toijnhtk£6.056 rev

3mo ago

8 Pack Water Filter Inserts Replacement Water Filters Compatible with Ninja Luxe Café Premier Espresso Machine Improves Taste & Reduces Chlorine and Limescale for Home Coffee Brewing

KDRNXVAL£7.486 rev

5mo ago

SAIERTE 6 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories Replacement Activated Caborn Coffee Machine Accessories Compatible with Ninja Luxe Café Premier Espresso Machine

SAIERTE£8.0546 rev

6mo ago

10 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories Activated Carbon Filter for Coffee Machine Compatible with Ninja Luxe Café Premier Espresso Machine ES601UK & Pro Series ES701UK

sumue£7.935 rev

7mo ago

Tranrantic 8 Pack Water Filter Inserts for Ninja Luxe Cafe Accessories

TranRantic£9.23117 rev

8mo ago

What buyers say about ninja coffee machine water filter

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

What buyers love

Value For Money29%

“Excellent value for money”

Size-Overall26%

“Perfect fit”

Advertised Vs Actual Product14%

“Exactly what I wanted”

Quality-Overall9%

“Excellent product”

Filtration7%

“The filters themselves seem decent quality”

Compatibility-Overall5%

“Perfect for Ninja 701 pro”

Ease Of Use3%

“Very easy to use”

Assembly/Installation2%

“Easy to install”

Durability2%

“That would give you enough to last a full year”

Strength1%

“They're not flimsy either”

What buyers complain about

Size-Overall60%

“All others I found were too small”

Advertised Vs Actual Product7%

“However, I have an issue with the misleading claim on the web page. made more than once”

Material Quality7%

“The permeable wall is made from a synthetic fibrous material which is not as firm as in the original cartridge”

Top return reasons

Filtration39%

Quality-Overall28%

Certifications11%

Water Resistance11%

Compatibility-Overall11%

Common questions

Is ninja coffee machine water filter profitable to sell on Amazon United Kingdom?: The niche generates £82K/yr across 8 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -16.1%. Flapen's verdict: Skip it (38/100).
How competitive is the ninja coffee machine water filter niche?: 7 brands and 8 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in ninja coffee machine water filter?: Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Material Quality. The return rate is 0.1%.
What does it cost to enter the ninja coffee machine water filter niche?: Listings span £6.05–£12.54; the average listing price is £9.11 (sweet spot $15–$100). The average incumbent carries 94 reviews — the moat a new listing must climb.