Skip to content
48

vs-sgz20l

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 100Growth 16Conversion 80Competition 6Returns 97Price range 0Avg price 0Brand share 0Review moat 78Quality gap 83

Market size

Incredible¥24.0M

¥24.0M/yr · 24K searches

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Great8.1%

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

Review moat

Great449

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-17.7%

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

Competition

Bad93%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥12282.61

avg listing price — sweet spot $15–$100

Price range

Bad¥11334.80–¥14580.19

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

According to Flapen's Amazon Japan niche tracking, vs-sgz20l is a ¥24.0M/yr Amazon Japan market (24K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 48/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

vs-sgz20l market data

Units sold / yr
1K–2K
avg 100–250/product
Revenue / yr
¥15.4M–¥18.4M
units × avg price
Conversion rate
8.1%
Avg BSR
#82
Page quality
0%
Prime
29%
Sponsored
57%
Out of stock
18.7%
Avg brand age
31 months
Avg seller age
138 days

Competition & brand share

The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

105

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

93%

Top 20: 100%

Open market

0%

  • パナソニック(Panasonic)68%
  • ノーブランド品32%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -17.7% search growth over the last 90 days.
1K600Spike '24Holiday '24Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Nov, Dec · busiest ÷ quietest = 1.9×

Top vs-sgz20l search terms

  • vs-sgz20l18K/yr
  • vs-sge20la4K/yr
  • vs sgz20l2K/yr
All search terms

Top vs-sgz20l 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%15%¥3.6M30%¥7.2M45%¥10.8M60%¥14.4M1101001K10K 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 7 tracked products in this niche — three views at once, no toggling.

What buyers say about vs-sgz20l

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

What buyers love

組み立て/インストール34%

“設置簡単です”

使用の容易さ12%

“手軽”

画像/写真の鮮明さ8%

“画像がキレイ”

総合品質6%

“品質も良く、とてもおすすめです。”

コストパフォーマンス6%

“コスパOK”

持ち運びやすさ5%

“持ち運び自由ですよ。”

セキュリティ4%

“ワイヤレス簡単防犯”

バッテリーの内蔵3%

“電池のもち具合”

接続性 - 全体3%

“ワイヤレスでも十分です。”

充電3%

“壁掛け出来る充電器も良くてモニターを子機みたいに持ち歩けます。”

What buyers complain about

接続性 - 全体16%

“WiFiに接続しないので、操作が簡単なので、再度同型のものを購入しました。”

バッテリーの内蔵12%

“乾電池はいつか無くなります”

充電10%

“電池の消耗が激しく、購入後3ヶ月で電池の残が無くなりました。”

組み立て/インストール7%

“説明書読んでも設置は無理でした。”

総合品質6%

“安い”

使用の容易さ4%

“わかりにくい部分ある”

ディスプレイ全体4%

“液晶モニターは小さいので見にくい”

画像/写真の鮮明さ3%

“顔の下半分しか写らない”

コストパフォーマンス2%

“値段が高い”

範囲2%

“玄関と室内モニターとの距離はそこそこ近いのですがあまり距離に関係ないように思います。”

Top return reasons

充電13%
組み立て/インストール13%
不良材料/部品12%
接続性 - 全体10%
互換性-全体7%
メンテナンスと修理5%
ディスプレイ全体5%
広告と実際の製品の違い5%
機能全体5%
サイズ全体5%

Common questions

Is vs-sgz20l profitable to sell on Amazon Japan?
The niche generates ¥24.0M/yr across 7 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is -17.7%. Flapen's verdict: Skip it (48/100).
How competitive is the vs-sgz20l niche?
2 brands and 105 sellers compete. The top 5 products take 93% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in vs-sgz20l?
Top complaints mined from reviews: 接続性 - 全体, バッテリーの内蔵, 充電. The return rate is 0.6%.
When does demand for vs-sgz20l peak?
Demand peaks in Nov–Dec; the busiest month runs 1.9× the quietest.
What does it cost to enter the vs-sgz20l niche?
Listings span ¥11334.80–¥14580.19; the average listing price is ¥12282.61 (sweet spot $15–$100). The average incumbent carries 449 reviews — the moat a new listing must climb.