---
title: "378xl Ink Cartridges — £42K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/computers-accessories/378xl-ink-cartridges"
last_updated: "2026-07-31T11:23:25.956Z"
locale: en
meta:
description: "Niche score 55/100 · £42K/yr market · 14K searches/yr · £20.09 avg price. A small market ($42K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · £42K/yr market · 14K searches/yr · £20.09 avg price. A small market ($42K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "378xl Ink Cartridges — £42K/yr Amazon UK Niche (2026) - Flapen"
---
# **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**
**Incredible****14.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.6%**
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**
**Great****296.72**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****78%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****58%**
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 ~~](https://flapen.com/research/methodology)
## **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 '25 seasonSepDecMarJunAugNovMarMay
Peak months: Oct · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/uk/computers-accessories/378xl-ink-cartridges/trend)
## **Top 378xl ink cartridges search terms**
- **epson xp-8700 printer ink cartridges**7K/yr-2.9%13.8% conv. - **epson 378 ink cartridges**3K/yr+5.6%15.8% conv. - **378xl ink cartridges**4K/yr-13.4%12.0% conv. [**All search terms **](https://flapen.com/research/uk/computers-accessories/378xl-ink-cartridges/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Epson 378 Squirrel Genuine Multipack 6-colours Ink Cartridges Claria Photo HD Ink**Epson**£47.81**4.5★1,723 rev](https://www.amazon.co.uk/dp/B074NCC8DK) [2**Meagiis 378XL Ink Cartridges Compatible for Epson 378 XL Ink Cartridges Multipack Compatible for Epson Expression Photo XP-8700 XP-8000 XP-8500 XP-8505 XP-8600 XP-8605 XP-15000 XP-8005 (12 Packs)**Meagiis**£17.07**4.6★100 rev](https://www.amazon.co.uk/dp/B0DSHF1FQ5) [3**ColorKing Ink Cartridges Compatible for Epson 378 Ink Cartridges Compatible for Epson XP 8700 Printer Ink Cartridges XP-8500 XP-8505 XP-8600 XP-8605 (7 Packs)**ColorKing**£16.21**4.4★337 rev](https://www.amazon.co.uk/dp/B0CDZZH8WJ) [4**LeciRoba 378XL Ink Cartridge for Epson 378 378xl ink cartridges for Epson Expression Photo XP-8500 XP-8505 XP-8600 XP-8605 Printers (12-PACK)**LeciRoba**£16.57**4.5★160 rev](https://www.amazon.co.uk/dp/B0CZ422GXX) [5**HenceBuy 378XL Ink Cartridges Multipack for Epson 378 XL Compatible with Epson Expression Photo XP-8700 XP-8600 XP-8500 XP-8505 XP-8605 XP-8000 XP-8005 HD XP-15000 Inkjet Printer (8 Pack)**HenceBuy**£13.48**4.7★35 rev](https://www.amazon.co.uk/dp/B0F53C14CR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SAILNER 378XL Ink Cartridges Replacement for Epson 378 Squirrel 14-Pack High Yield Multipack for Expression Photo XP-8700 XP-8600 XP-8500 XP-8000 XP-15000 Printer**SAILNER**£16.50**11 rev7mo ago](https://www.amazon.co.uk/dp/B0FQ4X68MJ) [**378XL Ink Cartridges 12-Pack High Yield Replacement for Epson 378 XL Ink Cartridges Multipack Compatible with Epson Expression Photo XP-8700 XP-8500 XP-8505 XP-8600 XP-8605 XP-8000 XP-8005**PACITEK**£14.45**13 rev1y ago](https://www.amazon.co.uk/dp/B0F9F6MHQF) [**HenceBuy 378XL Ink Cartridges Multipack for Epson 378 XL Compatible with Epson Expression Photo XP-8700 XP-8600 XP-8500 XP-8505 XP-8605 XP-8000 XP-8005 HD XP-15000 Inkjet Printer (8 Pack)**HenceBuy**£13.48**35 rev1y ago](https://www.amazon.co.uk/dp/B0F53C14CR) [**Clorisun 378XL Ink Cartridge for Epson 378 378xl ink cartridges for Epson Expression Photo XP-8000 XP-8005 XP-8500 XP-8505 XP-8600 XP-8605 XP-8606 XP-8700 XP-8705 XP-15000 Printers (12-PACK)**Clorisun**£16.56**56 rev1y ago](https://www.amazon.co.uk/dp/B0DYJ2ZH3K) [**Meagiis 378XL Ink Cartridges Compatible for Epson 378 XL Ink Cartridges Multipack Compatible for Epson Expression Photo XP-8700 XP-8000 XP-8500 XP-8505 XP-8600 XP-8605 XP-15000 XP-8005 (12 Packs)**Meagiis**£17.07**100 rev1y ago](https://www.amazon.co.uk/dp/B0DSHF1FQ5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HenceBuy 378XL Ink Cartridges Multipack for Epson 378 XL Compatible with Epson Expression Photo XP-8700 XP-8600 XP-8500 XP-8505 XP-8605 XP-8000 XP-8005 HD XP-15000 Inkjet Printer (8 Pack)**HenceBuy**£13.48**4.7★**▲ 140%**](https://www.amazon.co.uk/dp/B0F53C14CR) [**Meagiis 378XL Ink Cartridges Compatible for Epson 378 XL Ink Cartridges Multipack Compatible for Epson Expression Photo XP-8700 XP-8000 XP-8500 XP-8505 XP-8600 XP-8605 XP-15000 XP-8005 (12 Packs)**Meagiis**£17.07**4.6★**▲ 65%**](https://www.amazon.co.uk/dp/B0DSHF1FQ5) [**SAILNER 378XL Ink Cartridges Replacement for Epson 378 Squirrel 14-Pack High Yield Multipack for Expression Photo XP-8700 XP-8600 XP-8500 XP-8000 XP-15000 Printer**SAILNER**£16.50**4.7★**▲ 51%**](https://www.amazon.co.uk/dp/B0FQ4X68MJ) [**LeciRoba 378XL Ink Cartridge for Epson 378 378xl ink cartridges for Epson Expression Photo XP-8500 XP-8505 XP-8600 XP-8605 Printers (12-PACK)**LeciRoba**£16.57**4.5★**▲ 45%**](https://www.amazon.co.uk/dp/B0CZ422GXX) [**Epson 378 Black Squirrel Genuine Claria Photo HD Ink Cartridge Standard Capacity**Epson**£7.73**4.5★**▲ 27%**](https://www.amazon.co.uk/dp/B074ND6J1F)
**~~View all trending →~~**
## **What buyers say about 378xl ink cartridges**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**36%
*“Good Price”*
**Cartridge/Ink Quality**12%
*“Good quality ink”*
**Quality-Overall**12%
*“Excellent product”*
**Compatibility-Overall**10%
*“Epson compatible in cartridges-Praise”*
**Color**7%
*“The colours came out decent”*
**Size-Overall**5%
*“These fit great and work well”*
**Advertised Vs Actual Product**3%
*“As described”*
**Durability**2%
*“Works well and last a decent time”*
**Functionality-Overall**2%
*“Works perfectly”*
**Ease Of Use**2%
*“Simples”*
### **What buyers complain about **
**Compatibility-Overall**35%
*“Non-Compatibility issue”*
**Value For Money**18%
*“A bit expensive”*
**Quality-Overall**9%
*“Very poor quality not as described”*
**Color**6%
*“Bad quality of the colours”*
**Ease Of Cleaning**6%
*“no amount of head cleaning helped”*
**Size-Overall**6%
*“Not great took a while to fit in properly”*
**Advertised Vs Actual Product**3%
*“Wrong advertisement”*
**Cartridge/Ink Quality**3%
*“Unfortunately the cartridges appear to be poor quality”*
**Functionality-Overall**3%
*“Dont Buy, they dont work”*
### **Top return reasons **
**Compatibility-Overall**38%
**Functionality-Overall**18%
**Size-Overall**11%
**Color**7%
**Ink Refill**7%
**Quality-Overall**5%
**Advertised Vs Actual Product**2%
**Print Quality**2%
**Ease Of Use**2%
**Display Colors**1%
## **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.
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