Is 18.5 inch portable monitor profitable to sell on Amazon United Kingdom?

The niche generates £80K/yr across 33 tracked products. 7 of 14 products launched in the last 360 days are still selling. 90-day search growth is -27.9%. Flapen's verdict: Skip it (43/100).

How competitive is the 18.5 inch portable monitor niche?

17 brands and 28 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 56% of demand.

What do buyers complain about in 18.5 inch portable monitor?

Top complaints mined from reviews: Quality-Overall, Durability, Touch Screen. The return rate is 3.8%.

What does it cost to enter the 18.5 inch portable monitor niche?

Listings span £52.80–£220.23; the average listing price is £126.74 (sweet spot $15–$100). The average incumbent carries 1,642 reviews — the moat a new listing must climb.

18.5 Inch Portable Monitor

Skip it

Soft demand (-27.9% this quarter) — this niche doesn't clear our bar today.

Brand share

Great56%

top-5 brand share — no brand owns this niche

Competition

Great39%

top-5 click share — an open shelf

Avg price

Good£126.74

avg listing price — sweet spot $15–$100

Review moat

Okay1,642.45

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay3.8%

return rate — above 5% kills the launch gate

Conversion

Okay2.7%

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

Price range

Okay£52.80–£220.23

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

Market size

Bad£80K

£80K/yr · 24K searches

Growth

Bad-27.9%

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

Signals High Price

Is 18.5 inch portable monitor profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, 18.5 inch portable monitor is a £80K/yr Amazon United Kingdom market (24K searches/yr). The top 5 brands hold 56% of demand. Verdict: Skip it — 43/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

18.5 inch portable monitor market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 250–500; avg 0–100/product
Revenue / yr: £32K–£63K; units × avg price
Conversion rate: 2.7%
Avg BSR: #288
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 13.7%
Avg brand age: 22 months
Avg seller age: 161 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.

Brands

17 rising

Sellers

Top-5 brand share

56%

Top 20: 100%

Top-5 click share

39%

Top 20: 87%

Open market

36%

UPERFECT23%
EVICIV9%
MOMODS9%
COOLHOOD8%
Yodoit8%
CUIUIC7%

18.5 inch portable monitor demand & seasonality

Weekly Amazon search volume, last 23 weeks — -27.9% search growth over the last 90 days.

Open Trend

Top 18.5 inch portable monitor search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

18.5 inch portable monitor7K/yr -37.6%2.3% conv.
large portable monitor5K/yr -23.5%0.9% conv.
18 inch portable monitor4K/yr +7.7%2.1% conv.
portable monitor 20 inch4K/yr -24.0%0.9% conv.
portable monitor 18 inch4K/yr -48.6%1.5% conv.

All search terms

Top 18.5 inch portable monitor products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Top sellers

by 90-day click share

UPERFECT Portable Monitor 18.5 inch 120HZ 125% sRGB w/VESA & Kickstand

UPERFECT£123.604.5★1,751 rev

MOMODS 18.5 Inch Portable Monitor - 120Hz 1080P FHD Portable Gaming Monitor Second Screen for Laptop with IPS HDR USB-C & HDMI Travel Monitor with Speaker VESA Compatible

MOMODS£113.374.4★621 rev

Yodoit 18.5 100Hz Portable Monitor FHD 1920x1080P IPS Second External Display Laptop Screen Extender | USB-C & HDMI Connectivity Built-in Speakers with Kickstand for Laptop PC Mac PS3/4/5 Xbox

Yodoit£91.904.3★7,138 rev

CUIUIC 18.5 Inch Portable Monitor 120Hz 1080P IPS Portable Screen for Laptop Travel Monitor with HDR 100% sRGB VESA Second Screen for Laptop PS5 Xbox Phone

CUIUIC£123.024.3★2,493 rev

cocopar Portable Monitor 18.5 Inch 1080P FHD 100Hz 120% sRGB Travel Monitor with Speaker HDMI USB-C Second Screen for Laptop MacBook Surface PC Xbox PS4/5 VESA Mountable with KickStand

cocopar£122.494.8★2,845 rev

Newest

by launch date

Blackview 24 Large Portable Monitor 100Hz for Work Home Office Game 1080P FHD IPS Laptop Screen Extender with Rotating Stand & VESA USB-C HDMI Plug-Play for Mac/Windows/PS/Switch/Xbox

Blackview£218.126 rev

3mo ago

VisionOwl Large Portable Monitor 18.5 Inch 1080P FHD 100Hz Laptop Monitor 125% sRGB HDMI USB-C Portable Screen for Laptop Mac Surface PC PS5 Xbox Built-in Kickstand & Speakers VESA Mountable

VisionOwl£117.311,237 rev

5mo ago

Showscren 21.5 Inch Portable Monitor 1080P FHD Large Screen External Display VESA Mountable HDMI USB-C Portable Second Screen for Work Gaming Travel Laptop PC Phone PS5 Xbox

Showscren£79.8010 rev

6mo ago

Kenowa 2K USB-C Portable Monitor 23.8 inch QHD 2560x1440P FreeSync Large Gaming Monitor Dual Speakers&Adjustable stand&VESA with Type-C/HDMI port External Second Screen for PC/Mac/Laptop/Phone/PS3/4

Kenowa£136.972 rev

7mo ago

EVICIV 21.5 100Hz QLED Portable Monitor 130% sRGB 400Nits HDR Freesync Travel Gaming Second Screen w/VESA USB-C HDMI OTG External Display Compatible with PS5/Xbox/Switch/Steam Deck/Laptop/PC/Phone

EVICIV£144.11276 rev

8mo ago

What reviews say buyers love and hate about 18.5 inch portable monitor

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

What buyers love

Display Resolution14%

“Screen is perfect”

Portability14%

“Light and portable”

Quality-Overall13%

“Excellent product”

Value For Money12%

“Excellent value for money”

Weight Light8%

“Good clear screen and lightweight”

Assembly/Installation6%

“Very easy to install”

Ease Of Use4%

“easy to operate”

Connectivity-Overall3%

“Easy to connect up”

Size-Overall3%

“Good size for on the go”

Display Brightness3%

“Brightness can be adjusted easily”

What buyers complain about

Quality-Overall8%

“Not the best quality”

Durability6%

“Broke really easily and quickly”

Touch Screen5%

“the screen is broken”

Audio Quality5%

“Speakers are a bit tinny”

Compatibility-Overall5%

“Doesnt work with different cables”

Connectivity-Overall4%

“Connection was unstable”

Touch/Button Controls4%

“Recently had an issue with one of the buttons”

Brightness/Shine/Glow3%

“Low brightness”

Display Resolution2%

“Poor screen quality”

Product Condition2%

“Looked like a repackaged return”

Top return reasons

Size-Overall15%

Compatibility-Overall14%

Connectivity-Overall10%

Functionality-Overall9%

Touch Screen6%

Quality-Overall5%

Display Resolution5%

Display Brightness4%

Brightness/Shine/Glow4%

Defective Material/Parts2%

Common 18.5 inch portable monitor questions

Is 18.5 inch portable monitor profitable to sell on Amazon United Kingdom?: The niche generates £80K/yr across 33 tracked products. 7 of 14 products launched in the last 360 days are still selling. 90-day search growth is -27.9%. Flapen's verdict: Skip it (43/100).
How competitive is the 18.5 inch portable monitor niche?: 17 brands and 28 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 56% of demand.
What do buyers complain about in 18.5 inch portable monitor?: Top complaints mined from reviews: Quality-Overall, Durability, Touch Screen. The return rate is 3.8%.
What does it cost to enter the 18.5 inch portable monitor niche?: Listings span £52.80–£220.23; the average listing price is £126.74 (sweet spot $15–$100). The average incumbent carries 1,642 reviews — the moat a new listing must climb.

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