21.5 inch monitor
Skip itA small market ($73K/yr) — this niche doesn't clear our bar today.
Avg price
Great$81.11avg listing price — sweet spot $15–$100
Brand share
Good73%top-5 brand share — brands hold most of the demand
Returns
Good2.9%return rate — above 5% kills the launch gate
Review moat
Okay1,649.55avg incumbent reviews — the moat a new listing must climb
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Price range
Okay$53.19–$153.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay68%top-5 click share — leaders hold, buyers still browse
Growth
Bad-5.0%90-day search growth — must beat 0% to launch
Market size
Bad$73K$73K/yr · 24K searches
According to Flapen's Amazon United States niche tracking, 21.5 inch monitor is a $73K/yr Amazon United States market (24K searches/yr). The top 5 brands hold 73% of demand. Demand peaks in Jan–Feb–Jul–Dec. Verdict: Skip it — 39/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
21.5 inch monitor market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $81K–$101K
- units × avg price
- Conversion rate
- 3.8%
- Avg BSR
- #234
- Page quality
- 0%
- Prime
- 95%
- Sponsored
- 70%
- Out of stock
- 3.2%
- Avg brand age
- 28 months
- Avg seller age
- 183 days
Competition & brand share
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
63
Top-5 brand share
73%
Top 20: 100%
Top-5 click share
68%
Top 20: 100%
Open market
23%
- Acer33%
- Sceptre18%
- Philips Computer Monitors11%
- Samsung6%
- ASUS5%
- Lenovo4%
Demand & seasonality
Weekly Amazon search volume, last 98 weeks — -5.0% search growth over the last 90 days.Peak months: Jan, Feb, Jul, Dec · busiest ÷ quietest = 3.1×
Top 21.5 inch monitor search terms
- 21.5 inch monitor13K/yr
- 22 inch3K/yr
- 22 inch monitor with speakers5K/yr
- 21.5 monitor3K/yr
Top 21.5 inch monitor 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.
All 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Acer KB220Q H2bi 21.5 Full HD (1920 x 1080) Zero-Frame Home Office Monitor | Adaptive-Sync Support (FreeSync Compatible) | Up to 100Hz Refresh | 1ms (VRB) | sRGB 99% | Tilt | HDMI & VGA Ports
Acer$69.164.6★229 rev
Sceptre New 22-Inch Gaming Monitor FHD 1080p Up to 144Hz HDMI DisplayPort Built-in Speakers Machine Black (E225W-FW144 Series 2026)
Sceptre$66.694.5★992 rev
Philips 22 Inch Computer Monitor FHD 100Hz VA VESA Flicker-Free 221V8LB
Philips Computer Monitors$66.674.6★3,747 rev
Samsung 22 (S30GD) Essential Monitor with IPS Panel and Tilt Only Stand
Samsung$78.734.5★1,899 rev
Lenovo L22-4e - Office Monitor - 21.5 FHD IPS Display - 100Hz Refresh Rate - 4 ms MPRT - 99% sRGB - Raven Black - Tilt Stand
Lenovo$75.644.2★26 rev
Newest
by launch date
msi PRO MP225 E12VL 22-inch1920 x 1080 (FHD) Computer Monitor 120Hz Adaptive-Sync HDMI Video Port VESA Mountable Tilt 1ms Black
msi$60.8643 rev
Kenowa 21.5 Large Portable Monitor FHD 1080P IPS 75Hz Frameless USB C HDMI Portable Gaming Monitor Built in Speakers Stand Travel Second Monitor for Laptop Phone PC Xbox
Kenowa$120.8810 rev
Philips 22 Inch Computer Monitor FHD 120Hz Overclocked IPS VESA 22E2N1100
PHILIPS$67.8564 rev
LIGHT FLIGHT Carry On Luggage 22x14x9 Airline Approved Expandable Carry On Suitcases with Wheels Lightweight Luggage Durable Hard Shell 20 Inch Rolling Suit Case for Men Women Travel Royal Blue
LIGHT FLIGHT$53.19355 rev
21.5 Large Portable Monitor for Laptop 100Hz Ultra-Fast IPS Gaming Monitor QLED 125%sRGB | 2000:1 Contrast | Built-in Stand Speaker and VESA USB-C HDMI Second Screen Efficient Work Gaming
Newsoul$153.64258 rev
Trending
90-day click momentumLIGHT FLIGHT Carry On Luggage 22x14x9 Airline Approved Expandable Carry On Suitcases with Wheels Lightweight Luggage Durable Hard Shell 20 Inch Rolling Suit Case for Men Women Travel Royal Blue
LIGHT FLIGHT$53.194.7★
Philips 22 Inch Computer Monitor FHD 120Hz Overclocked IPS VESA 22E2N1100
PHILIPS$67.854.6★
msi PRO MP225 E12VL 22-inch1920 x 1080 (FHD) Computer Monitor 120Hz Adaptive-Sync HDMI Video Port VESA Mountable Tilt 1ms Black
msi$60.864.5★
Kenowa 21.5 Large Portable Monitor FHD 1080P IPS 75Hz Frameless USB C HDMI Portable Gaming Monitor Built in Speakers Stand Travel Second Monitor for Laptop Phone PC Xbox
Kenowa$120.885.0★
Sceptre 22-Inch 75Hz 1080p LED Monitor HDMI VGA Build-in Speakers Brushed Black 2019 (E225W-19203S) Metal Black
Sceptre$64.524.5★
What buyers say about 21.5 inch monitor
What buyers praise and complain about, mined from review topics.What buyers love
“Great deal”
“Build quality feels solid overall”
“Good resolution”
“Assembly is simple”
“the size is convenient”
“As advertised”
“Exceptionally lightweight”
“The colors are vibrant”
“Easy to use”
“Nice portable monitor”
What buyers complain about
“The sound is terrible”
“is lower quality for anything significant”
“this monitor seems small”
“Did not work”
“Broke”
“Not what it seems”
“That is to say pixels are not square and any images displayed at native resolution are distorted. squares appear as wide rectangles, etc.”
“No speakers”
“The color is also terrible”
“The stand would not connect properly”
Top return reasons
Common questions
- Is 21.5 inch monitor profitable to sell on Amazon United States?
- The niche generates $73K/yr across 20 tracked products. 10 of 10 products launched in the last 360 days are still selling. 90-day search growth is -5.0%. Flapen's verdict: Skip it (39/100).
- How competitive is the 21.5 inch monitor niche?
- 17 brands and 63 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 73% of demand.
- What do buyers complain about in 21.5 inch monitor?
- Top complaints mined from reviews: Audio Quality, Quality-Overall, Size-Overall. The return rate is 2.9%.
- When does demand for 21.5 inch monitor peak?
- Demand peaks in Jan–Feb–Jul–Dec; the busiest month runs 3.1× the quietest.
- What does it cost to enter the 21.5 inch monitor niche?
- Listings span $53.19–$153.64; the average listing price is $81.11 (sweet spot $15–$100). The average incumbent carries 1,650 reviews — the moat a new listing must climb.