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50

computer privacy screen 21.5 inch

Worth a look

Shows a sweet-spot price point ($39.31 avg), but a small market ($35K/yr) keeps it on the watch list.

Market size 9Growth 47Conversion 89Competition 28Returns 22Price range 95Avg price 95Brand share 62Review moat 47Quality gap 80

Avg price

Incredible$39.31

avg listing price — sweet spot $15–$100

Price range

Incredible$21.95–$60.85

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

Conversion

Great10.6%

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Brand share

Good68%

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

Growth

Okay+17.5%

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

Review moat

Okay1,818.19

avg incumbent reviews — the moat a new listing must climb

Competition

Okay68%

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

Returns

Bad5.8%

return rate — above 5% kills the launch gate

Market size

Bad$35K

$35K/yr · 9K searches

According to Flapen's Amazon United States niche tracking, computer privacy screen 21.5 inch is a $35K/yr Amazon United States market (9K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 50/100.

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

computer privacy screen 21.5 inch market data

Units sold / yr
1K–2K
avg 0–100/product
Revenue / yr
$49K–$59K
units × avg price
Conversion rate
10.6%
Avg BSR
#76
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
4.7%
Avg brand age
36 months
Avg seller age
198 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

16 rising

Sellers

25

Top-5 brand share

68%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

27%

  • Mamol21%
  • Izmapaic17%
  • Peslv15%
  • Vxaop9%
  • YAKAI5%
  • RedANGEL5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +17.5% search growth over the last 90 days.
2K2KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, May · busiest ÷ quietest = 8.9×

Top computer privacy screen 21.5 inch search terms

  • 21.5 inch privacy screen for monitor4K/yr
  • computer privacy screen 21 inch3K/yr
  • computer privacy screen 21.5 inch1K/yr
All search terms

Top computer privacy screen 21.5 inch 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%$7K30%$11K40%$14K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 16 tracked products in this niche — three views at once, no toggling.

What buyers say about computer privacy screen 21.5 inch

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

What buyers love

Advertised Vs Actual Product42%

“Does the job exactly as it advertises”

Assembly/Installation42%

“Easy to install”

Quality-Overall8%

“Great product”

Adhesion/Stickiness8%

“Have no problems with adhesives or fit”

What buyers complain about

Advertised Vs Actual Product100%

“Beware of the descriptions”

Top return reasons

Size-Overall78%
Functionality-Overall4%
Advertised Vs Actual Product3%
Security2%
Compatibility-Overall2%
Adhesion/Stickiness2%
Length1%
Display Resolution1%
Display Viewing Angle1%
Value For Money1%

Common questions

Is computer privacy screen 21.5 inch profitable to sell on Amazon United States?
The niche generates $35K/yr across 16 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +17.5%. Flapen's verdict: Worth a look (50/100).
How competitive is the computer privacy screen 21.5 inch niche?
16 brands and 25 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 68% of demand.
What do buyers complain about in computer privacy screen 21.5 inch?
Top complaints mined from reviews: Advertised Vs Actual Product. The return rate is 5.8% — above our launch gate.
When does demand for computer privacy screen 21.5 inch peak?
Demand peaks in Apr–May; the busiest month runs 8.9× the quietest.
What does it cost to enter the computer privacy screen 21.5 inch niche?
Listings span $21.95–$60.85; the average listing price is $39.31 (sweet spot $15–$100). The average incumbent carries 1,818 reviews — the moat a new listing must climb.