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55

378xl ink cartridges

Worth a look

Shows searches that convert (14.8% search→purchase), but a small market ($42K/yr) keeps it on the watch list.

Market size 10Growth 23Conversion 97Competition 45Returns 97Price range 88Avg price 88Brand share 46Review moat 85Quality gap 58

Conversion

Incredible14.8%

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

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Avg price

Great£20.09

avg listing price — sweet spot $15–$100

Price range

Great£7.73–£89.75

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

Review moat

Great296.72

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Brand share

Okay78%

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

Competition

Okay58%

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

Growth

Bad-3.5%

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

Market size

Bad£42K

£42K/yr · 14K searches

According to Flapen's Amazon United Kingdom niche tracking, 378xl ink cartridges is a £42K/yr Amazon United Kingdom market (14K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Oct. Verdict: Worth a look — 55/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

378xl ink cartridges market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
£40K–£50K
units × avg price
Conversion rate
14.8%
Avg BSR
#968
Page quality
0%
Prime
100%
Sponsored
83%
Out of stock
1.7%
Avg brand age
43 months
Avg seller age
194 days

Competition & brand share

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 falling

Sellers

69

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

58%

Top 20: 100%

Open market

18%

  • Epson41%
  • Meagiis14%
  • ColorKing10%
  • LeciRoba7%
  • HenceBuy6%
  • SAILNER4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.5% search growth over the last 90 days.
600400Spike '24Holiday '24Prime Day '25Spike '25Black Friday '25SepDecMarJunAugNovMarMay

Peak months: Oct · busiest ÷ quietest = 1.8×

Top 378xl ink cartridges search terms

  • epson xp-8700 printer ink cartridges7K/yr
  • epson 378 ink cartridges3K/yr
  • 378xl ink cartridges4K/yr
All search terms

Top 378xl ink cartridges 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%10%£4K20%£8K30%£13K40%£17K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 18 tracked products in this niche — three views at once, no toggling.

What buyers say about 378xl ink cartridges

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

What buyers love

Value For Money36%

“Good Price”

Cartridge/Ink Quality12%

“Good quality ink”

Quality-Overall12%

“Excellent product”

Compatibility-Overall10%

“Epson compatible in cartridges-Praise”

Color7%

“The colours came out decent”

Size-Overall5%

“These fit great and work well”

Advertised Vs Actual Product3%

“As described”

Durability2%

“Works well and last a decent time”

Functionality-Overall2%

“Works perfectly”

Ease Of Use2%

“Simples”

What buyers complain about

Compatibility-Overall35%

“Non-Compatibility issue”

Value For Money18%

“A bit expensive”

Quality-Overall9%

“Very poor quality not as described”

Color6%

“Bad quality of the colours”

Ease Of Cleaning6%

“no amount of head cleaning helped”

Size-Overall6%

“Not great took a while to fit in properly”

Advertised Vs Actual Product3%

“Wrong advertisement”

Cartridge/Ink Quality3%

“Unfortunately the cartridges appear to be poor quality”

Functionality-Overall3%

“Dont Buy, they dont work”

Top return reasons

Compatibility-Overall38%
Functionality-Overall18%
Size-Overall11%
Color7%
Ink Refill7%
Quality-Overall5%
Advertised Vs Actual Product2%
Print Quality2%
Ease Of Use2%
Display Colors1%

Common questions

Is 378xl ink cartridges profitable to sell on Amazon United Kingdom?
The niche generates £42K/yr across 18 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.5%. Flapen's verdict: Worth a look (55/100).
How competitive is the 378xl ink cartridges niche?
13 brands and 69 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in 378xl ink cartridges?
Top complaints mined from reviews: Compatibility-Overall, Value For Money, Quality-Overall. The return rate is 0.6%.
When does demand for 378xl ink cartridges peak?
Demand peaks in Oct; the busiest month runs 1.8× the quietest.
What does it cost to enter the 378xl ink cartridges niche?
Listings span £7.73–£89.75; the average listing price is £20.09 (sweet spot $15–$100). The average incumbent carries 297 reviews — the moat a new listing must climb.