Is sk11 profitable to sell on Amazon Japan?

The niche generates ¥8.5M/yr across 79 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -25.0%. Flapen's verdict: Worth a look (53/100).

How competitive is the sk11 niche?

4 brands and 65 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in sk11?

Top complaints mined from reviews: サイズ全体, 耐久性, 総合品質. The return rate is 0.5%.

What does it cost to enter the sk11 niche?

Listings span ¥605.57–¥45025.44; the average listing price is ¥4670.39 (sweet spot $15–$100). The average incumbent carries 620 reviews — the moat a new listing must climb.

sk11

Worth a look

Shows a $8.5M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size

Incredible¥8.5M

¥8.5M/yr · 349K searches

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Competition

Great24%

top-5 click share — an open shelf

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Review moat

Good619.75

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-25.0%

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

Conversion

Bad0.5%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

Avg price

Bad¥4670.39

avg listing price — sweet spot $15–$100

Price range

Bad¥605.57–¥45025.44

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

Signals High Price

According to Flapen's Amazon Japan niche tracking, sk11 is a ¥8.5M/yr Amazon Japan market (349K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 53/100.

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

sk11 market data

Units sold / yr: 1K–2K; avg 0–100/product
Revenue / yr: ¥5.8M–¥7.0M; units × avg price
Conversion rate: 0.5%
Avg BSR: #843
Page quality: 0%
Prime: 100%
Sponsored: 48%
Out of stock: 1.0%
Avg brand age: 49 months
Avg seller age: 161 days

Competition & brand share

Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

24%

Top 20: 62%

Open market

SK11(エスケー11)65%
SK1132%
JUKMO2%
SK-II1%
Open — no brand owns it (0%)

Demand

Weekly Amazon search volume, last 48 weeks — -25.0% search growth over the last 90 days.

Open Trend

Top sk11 search terms

sk11261K/yr -22.6%0.3% conv.
藤原産業 sk1116K/yr -15.1%0.3% conv.
sk11 工具26K/yr -55.2%0.2% conv.
sk11(エスケー11)32K/yr -32.4%0.0% conv.
sk-116K/yr -11.3%0.4% conv.
sk11 エスケー114K/yr +0.6%0.0% conv.
skー113K/yr -66.5%0.0% conv.

All search terms

Top sk11 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

SK11(エスケー11) 万能はさみオールステンレスロング全長約200mm SMS-AS200L バネ付きハンドル

SK11(エスケー11)¥1532.074.6★887 rev

SK11(エスケー11) ポケット付き半袖Tシャツブラック Lサイズ 521912-BK-L

SK11¥902.384.0★7 rev

SK11(エスケー11) デジタルトルクレンチ差込角 9.5mm 3~60N・m SDT3-060

SK11(エスケー11)¥11024.404.4★1,519 rev

SK11(エスケー11) 伸縮式ラチェットハンドル差込角9.5mm ギア数72山全長258～373mm(6段階ポジション) SRH3CZ

SK11(エスケー11)¥3432.804.4★58 rev

SK11(エスケー11) ポケット付き半袖Tシャツブラック 3Lサイズ 521914-BK-3L

SK11¥900.944.0★7 rev

Newest

by launch date

SK11(エスケー11) エアバッグジャッキ耐荷重120kg バッグ高さ3～50mm バッグサイズ15×16cm 隙間の拡張・高さ調整・取付補助に SHL-50S

SK11(エスケー11)¥814.5622 rev

1y ago

SK11(エスケー11) 充電式LEDワークライトメイン600lm(無段階調光)/トップ150lm 180度開閉+回転底面マグネット USB-タイプC充電 SLW-600DMFD

SK11¥2975.4266 rev

1y ago

SK11(エスケー11) 伸縮式ラチェットハンドル差込角9.5mm ギア数72山全長258～373mm(6段階ポジション) SRH3CZ

SK11(エスケー11)¥3432.8058 rev

1y ago

SK11(エスケー11) LEDネックライト充電式最大300lm 防雨型IP42 SLN-300Li

SK11¥2498.04126 rev

1y ago

SK11(エスケー11) ポケット付き半袖Tシャツブラック Lサイズ 521912-BK-L

SK11¥902.387 rev

2y ago

What buyers say about sk11

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

What buyers love

使用の容易さ31%

“使えます。”

コストパフォーマンス15%

“切れ良し、コスパ良し。”

総合品質11%

“お値段、品質、ヨカですー”

サイズ全体4%

“ベストサイズ”

強さ4%

“光量強い”

明るさ/輝き/光沢3%

“明るくて、使いやすいライト. 夜の散歩や夜釣りの為に購入しました。非常に明るく、調光も出来るので、おすすめです。”

耐久性3%

“耐久性抜群”

軽い2%

“空転トルクもわりかし軽くて、伸縮機構のぐらつきもほぼありません。”

生锈/腐食する2%

“海水でも錆びないし、切れ味抜群です。”

握り心地1%

“ホルダーが良い♪ ホルダーが良くて、外れる事はあまり無さそうですよ。”

What buyers complain about

サイズ全体9%

“ヘッドが小さく使いやすい”

耐久性7%

“壊れました”

総合品質7%

“もう少し安ければ良い商品”

使用の容易さ7%

“使い物になりません。”

コストパフォーマンス5%

“値段が安かった”

生锈/腐食する4%

“海水に当てると少し錆びやすいかな。”

測定/読み取り精度3%

“ゲージがあまり正確ではないのが唯一の不満です。”

厚み3%

“差仕込みの入口4mm程度で奥は細い”

重い3%

“少し重量感あり”

強さ3%

“反対にも折れてほしい下に向けることが出来ない”

Top return reasons

サイズ全体30%

不良材料/部品16%

機能全体9%

メカニズムの問題6%

耐久性4%

漏れ防止3%

商品の状態3%

コネクタ/ポート/プラグ3%

広告と実際の製品の違い3%

総合品質3%

Common questions

Is sk11 profitable to sell on Amazon Japan?: The niche generates ¥8.5M/yr across 79 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -25.0%. Flapen's verdict: Worth a look (53/100).
How competitive is the sk11 niche?: 4 brands and 65 sellers compete. The top 5 products take 24% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in sk11?: Top complaints mined from reviews: サイズ全体, 耐久性, 総合品質. The return rate is 0.5%.
What does it cost to enter the sk11 niche?: Listings span ¥605.57–¥45025.44; the average listing price is ¥4670.39 (sweet spot $15–$100). The average incumbent carries 620 reviews — the moat a new listing must climb.

sk11

sk11 market data

Competition & brand share

Demand

Top sk11 search terms

Top sk11 products on Amazon

Top sellers

Newest

Trending

What buyers say about sk11

What buyers love

What buyers complain about

Top return reasons

Common questions

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