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52

vl-sgz30

Worth a look

Shows a $24.3M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 100Growth 13Conversion 87Competition 19Returns 97Price range 0Avg price 0Brand share 0Review moat 83Quality gap 95

Market size

Incredible¥24.3M

¥24.3M/yr · 15K searches

Returns

Incredible0.6%

return rate — above 5% kills the launch gate

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Conversion

Great10.0%

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

Review moat

Great333

avg incumbent reviews — the moat a new listing must climb

Competition

Bad77%

top-5 click share — a locked-up shelf

Growth

Bad-25.0%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥16203.36

avg listing price — sweet spot $15–$100

Price range

Bad¥11571.56–¥35992.15

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

According to Flapen's Amazon Japan niche tracking, vl-sgz30 is a ¥24.3M/yr Amazon Japan market (15K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 52/100.

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

vl-sgz30 market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥8.1M–¥12.2M
units × avg price
Conversion rate
10.0%
Avg BSR
#98
Page quality
0%
Prime
46%
Sponsored
38%
Out of stock
5.0%
Avg brand age
30 months
Avg seller age
136 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 falling

Sellers

204

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

0%

  • パナソニック(Panasonic)62%
  • ノーブランド品38%

Demand

Weekly Amazon search volume, last 40 weeks — -25.0% search growth over the last 90 days.
400300Holiday '25Spike '26Prime Day '26Oct '25Dec '25Jan '26Mar '26Apr '26May '26Jul '26

Top vl-sgz30 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%¥2.4M20%¥4.9M30%¥7.3M40%¥9.7M1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)3 products missing review or click data not plotted

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about vl-sgz30

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

What buyers love

組み立て/インストール30%

“設置簡単です”

使用の容易さ14%

“手軽”

コストパフォーマンス8%

“コスパOK”

画像/写真の鮮明さ8%

“カメラ感度、液晶明るい、ライトは夜すごく良い”

総合品質7%

“良い製品です”

セキュリティ4%

“ワイヤレス簡単防犯”

持ち運びやすさ4%

“持ち運び自由ですよ。”

接続性 - 全体3%

“ワイヤレスでも十分です。”

バッテリーの内蔵3%

“電池のもち具合”

充電2%

“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20%

“ドアホンとモニターが接続しなかったので、メーカーに修理を依頼したところ、. 配線不備だと確認されて、交換を指示されました。”

バッテリーの内蔵7%

“乾電池はいつか無くなります”

充電7%

“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。”

画像/写真の鮮明さ7%

“顔の下半分しか写らない”

総合品質4%

“安い”

耐久性4%

“雨水が入ってしまい壊れてしまいました。”

コストパフォーマンス3%

“値段が高い”

組み立て/インストール3%

“説明書読んでも設置は無理でした。”

使用の容易さ3%

“わかりにくい部分ある”

ディスプレイ全体3%

“液晶モニターは小さいので見にくい”

Top return reasons

接続性 - 全体25%
不良材料/部品11%
組み立て/インストール10%
機能全体9%
互換性-全体8%
サイズ全体5%
広告と実際の製品の違い5%
充電5%
追加アイテム/添付ファイル3%
使用説明書/ユーザーマニュアル/トラブルシューティング2%

Common questions

Is vl-sgz30 profitable to sell on Amazon Japan?
The niche generates ¥24.3M/yr across 13 tracked products. 4 of 5 products launched in the last 360 days are still selling. 90-day search growth is -25.0%. Flapen's verdict: Worth a look (52/100).
How competitive is the vl-sgz30 niche?
2 brands and 204 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in vl-sgz30?
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%.
What does it cost to enter the vl-sgz30 niche?
Listings span ¥11571.56–¥35992.15; the average listing price is ¥16203.36 (sweet spot $15–$100). The average incumbent carries 333 reviews — the moat a new listing must climb.