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47

vl-v571l

Skip it

Pricing outside the sweet spot ($3402.07 avg) — this niche doesn't clear our bar today.

Market size 78Growth 24Conversion 32Competition 25Returns 87Price range 0Avg price 0Brand share 16Review moat 95Quality gap 96

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Review moat

Incredible90.31

avg incumbent reviews — the moat a new listing must climb

Returns

Great1.4%

return rate — above 5% kills the launch gate

Market size

Great¥1.0M

¥1.0M/yr · 12K searches

Conversion

Okay2.5%

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

Competition

Bad70%

top-5 click share — a locked-up shelf

Growth

Bad-1.3%

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

Brand share

Bad93%

top-5 brand share — brand-locked demand

Avg price

Bad¥3402.07

avg listing price — sweet spot $15–$100

Price range

Bad¥1548.12–¥17970.48

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

According to Flapen's Amazon Japan niche tracking, vl-v571l is a ¥1.0M/yr Amazon Japan market (12K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jan–Aug. Verdict: Skip it — 47/100.

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

vl-v571l market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
¥851K–¥1.7M
units × avg price
Conversion rate
2.5%
Avg BSR
#324
Page quality
0%
Prime
85%
Sponsored
62%
Out of stock
0.6%
Avg brand age
54 months
Avg seller age
151 days

Competition & brand share

The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

47

Top-5 brand share

93%

Top 20: 100%

Top-5 click share

70%

Top 20: 100%

Open market

4%

  • SunSlow49%
  • パナソニック(Panasonic)16%
  • ノーブランド品16%
  • ROOOCYY9%
  • UTST3%
  • longsafe3%
  • Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 76 weeks — -1.3% search growth over the last 90 days.
350250Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26MarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJunJul

Peak months: Jan, Aug · busiest ÷ quietest = 1.9×

Top vl-v571l 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%¥105K20%¥209K30%¥314K40%¥419K1101001K 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 13 tracked products in this niche — three views at once, no toggling.

What buyers say about vl-v571l

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

What buyers love

使用の容易さ16%

“シンプルでグッド”

画像/写真の鮮明さ13%

“鮮明に映ります”

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12%

“図解入りの日本語説明書が付属しており、作業手順が順を追って書かれているため迷いにくい。DIY経験が少なくても進めやすい構成だ。”

総合品質6%

“良い商品です。”

レンズ5%

“外に出た時、交換後のレンズ面が透明に光っていて見た目もすっきりしました。”

組み立て/インストール4%

“簡単に取り付け出来て良かったです”

互換性-全体3%

“互換品ですが問題なく使用できています”

オートフォーカス3%

“90度ずつ回していくと、いきなりピントが合う場所を見つけられます。”

コストパフォーマンス2%

“お買い得ですよ。”

サイズ全体2%

“ジャストフィット”

What buyers complain about

レンズ17%

“レンズを固定するパーツのネジ穴が小さい問題がありましたが、すぐに代替の品を手配頂き助かりました。”

オートフォーカス16%

“ピントが合いません”

画像のフォーカス7%

“しかしなかなかピントが合わず、だめなのかなあと途方に暮れていましたが、付属する台座を使わずに元から付いていた台座”

取り付け5%

“取り付け台が合いません”

調整可能性/回転機能/リクライニング機能 4%

“他の人が言うように調整が難しかった”

機能全体3%

“結局直りません”

商品の状態2%

“全く写りませので新品で買い直しました。”

耐久性2%

“結局直りません”

可視性2%

“顔の確認が出来ません。”

使用の容易さ2%

“ピント合わせに時間がかかりました。”

Top return reasons

レンズ18%
広告と実際の製品の違い14%
互換性-全体12%
オートフォーカス12%
画像/写真の鮮明さ11%
商品の状態8%
形状/スタイル7%
機能全体5%
サイズ全体5%
不良材料/部品3%

Common questions

Is vl-v571l profitable to sell on Amazon Japan?
The niche generates ¥1.0M/yr across 13 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is -1.3%. Flapen's verdict: Skip it (47/100).
How competitive is the vl-v571l niche?
8 brands and 47 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 93% of demand.
What do buyers complain about in vl-v571l?
Top complaints mined from reviews: レンズ, オートフォーカス, 画像のフォーカス. The return rate is 1.4%.
When does demand for vl-v571l peak?
Demand peaks in Jan–Aug; the busiest month runs 1.9× the quietest.
What does it cost to enter the vl-v571l niche?
Listings span ¥1548.12–¥17970.48; the average listing price is ¥3402.07 (sweet spot $15–$100). The average incumbent carries 90 reviews — the moat a new listing must climb.