---
title: "21.5 Inch Monitor — $73K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/21-5-inch-monitor"
last_updated: "2026-08-11T04:22:03.342Z"
locale: en
meta:
description: "Niche score 39/100 · $73K/yr market · 24K searches/yr · $81.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $73K/yr market · 24K searches/yr · $81.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "21.5 Inch Monitor — $73K/yr Amazon US Niche (2026) - Flapen"
---
# **21.5 inch monitor**
**Skip it**
A small market ($73K/yr) — this niche doesn't clear our bar today.
Market size 18Growth 23Conversion 48Competition 28Returns 51Price range 47Avg price 82Brand share 54Review moat 49Quality gap 42
**Avg price**
**Great****$81.11**
avg listing price — sweet spot $15–$100
**Brand share**
**Good****73%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.9%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****1,649.55**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Okay****3.8%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Okay****$53.19–$153.64**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Okay****68%**
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
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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.
600400Spike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Jan, Feb, Jul, Dec · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/electronics/21-5-inch-monitor/trend)
## **Top 21.5 inch monitor search terms**
- **21.5 inch monitor**13K/yr-5.9%3.9% conv. - **22 inch**3K/yr+49.6%0.4% conv. - **22 inch monitor with speakers**5K/yr-26.8%3.2% conv. - **21.5 monitor**3K/yr-20.5%4.2% conv. [**All search terms **](https://flapen.com/research/us/electronics/21-5-inch-monitor/search-terms)
## **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.
0%10%$7K20%$15K30%$22K40%$29K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$69.16**4.6★229 rev](https://www.amazon.com/dp/B0FPRDTVMD) [2**Sceptre New 22-Inch Gaming Monitor FHD 1080p Up to 144Hz HDMI DisplayPort Built-in Speakers Machine Black (E225W-FW144 Series 2026)**Sceptre**$66.69**4.5★992 rev](https://www.amazon.com/dp/B0FT21HKZ6) [3**Philips 22 Inch Computer Monitor FHD 100Hz VA VESA Flicker-Free 221V8LB**Philips Computer Monitors**$66.67**4.6★3,747 rev](https://www.amazon.com/dp/B0CVM2GJCN) [4**Samsung 22 (S30GD) Essential Monitor with IPS Panel and Tilt Only Stand**Samsung**$78.73**4.5★1,899 rev](https://www.amazon.com/dp/B0DK46JV64) [5**Lenovo L22-4e - Office Monitor - 21.5 FHD IPS Display - 100Hz Refresh Rate - 4 ms MPRT - 99% sRGB - Raven Black - Tilt Stand**Lenovo**$75.64**4.2★26 rev](https://www.amazon.com/dp/B0FPRGSK6J)
**~~View all top sellers →~~**
### **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**$60.86**43 rev4mo ago](https://www.amazon.com/dp/B0GV1MNVXX) [**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**$120.88**10 rev6mo ago](https://www.amazon.com/dp/B0GGZKVNY4) [**Philips 22 Inch Computer Monitor FHD 120Hz Overclocked IPS VESA 22E2N1100**PHILIPS**$67.85**64 rev6mo ago](https://www.amazon.com/dp/B0GGV98K1W) [**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**$53.19**355 rev6mo ago](https://www.amazon.com/dp/B0GDWMPQP4) [**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**$153.64**258 rev8mo ago](https://www.amazon.com/dp/B0G1YJM3ML)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$53.19**4.7★**▲ 251%**](https://www.amazon.com/dp/B0GDWMPQP4) [**Philips 22 Inch Computer Monitor FHD 120Hz Overclocked IPS VESA 22E2N1100**PHILIPS**$67.85**4.6★**▲ 250%**](https://www.amazon.com/dp/B0GGV98K1W) [**msi PRO MP225 E12VL 22-inch1920 x 1080 (FHD) Computer Monitor 120Hz Adaptive-Sync HDMI Video Port VESA Mountable Tilt 1ms Black**msi**$60.86**4.5★**▲ 240%**](https://www.amazon.com/dp/B0GV1MNVXX) [**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**$120.88**5.0★**▲ 203%**](https://www.amazon.com/dp/B0GGZKVNY4) [**Sceptre 22-Inch 75Hz 1080p LED Monitor HDMI VGA Build-in Speakers Brushed Black 2019 (E225W-19203S) Metal Black**Sceptre**$64.52**4.5★**▲ 135%**](https://www.amazon.com/dp/B07LFZGRHS)
**~~View all trending →~~**
## **What buyers say about 21.5 inch monitor**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**24%
*“Great deal”*
**Quality-Overall**12%
*“Build quality feels solid overall”*
**Display Resolution**11%
*“Good resolution”*
**Assembly/Installation**6%
*“Assembly is simple”*
**Size-Overall**6%
*“the size is convenient”*
**Advertised Vs Actual Product**5%
*“As advertised”*
**Weight Light**3%
*“Exceptionally lightweight”*
**Color**3%
*“The colors are vibrant”*
**Ease Of Use**2%
*“Easy to use”*
**Portability**2%
*“Nice portable monitor”*
### **What buyers complain about **
**Audio Quality**11%
*“The sound is terrible”*
**Quality-Overall**7%
*“is lower quality for anything significant”*
**Size-Overall**6%
*“this monitor seems small”*
**Functionality-Overall**5%
*“Did not work”*
**Durability**4%
*“Broke”*
**Advertised Vs Actual Product**4%
*“Not what it seems”*
**Display Resolution**4%
*“That is to say pixels are not square and any images displayed at native resolution are distorted. squares appear as wide rectangles, etc.”*
**Speaker**3%
*“No speakers”*
**Color**3%
*“The color is also terrible”*
**Connectivity-Overall**3%
*“The stand would not connect properly”*
### **Top return reasons **
**Size-Overall**38%
**Compatibility-Overall**11%
**Functionality-Overall**7%
**Connectivity-Overall**7%
**Display Resolution**4%
**Advertised Vs Actual Product**4%
**Value For Money**4%
**Quality-Overall**3%
**Defective Material/Parts**2%
**Speaker**2%
## **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.
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