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59

qiコネクタ

Worth a look

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 86Growth 22Conversion 84Competition 52Returns 99Price range 0Avg price 0Brand share 40Review moat 95Quality gap 79

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Review moat

Incredible91.96

avg incumbent reviews — the moat a new listing must climb

Market size

Great¥1.5M

¥1.5M/yr · 13K searches

Conversion

Great9.1%

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Growth

Bad-6.3%

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

Avg price

Bad¥1272.11

avg listing price — sweet spot $15–$100

Price range

Bad¥476.31–¥3545.31

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

According to Flapen's Amazon Japan niche tracking, qiコネクタ is a ¥1.5M/yr Amazon Japan market (13K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 59/100.

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

qiコネクタ market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥636K–¥954K
units × avg price
Conversion rate
9.1%
Avg BSR
#183
Page quality
0%
Prime
100%
Sponsored
81%
Out of stock
4.0%
Avg brand age
51 months
Avg seller age
261 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

15 rising

Sellers

19

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

54%

Top 20: 93%

Open market

16%

  • IWISS35%
  • サムコス23%
  • huangylll12%
  • オーディオファン6%
  • KKHMF5%
  • CGExxl3%
  • Open — no brand owns it (9 brands, 16%)

Demand

Weekly Amazon search volume, last 34 weeks — -6.3% search growth over the last 90 days.
300200Spike '26Prime Day '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jul '26

Top qiコネクタ 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%4%¥58K8%¥117K12%¥175K16%¥234K1101001K10K 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 24 tracked products in this niche — three views at once, no toggling.

What buyers say about qiコネクタ

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

What buyers love

コストパフォーマンス33%

“コストパフォーマンスも良い”

使用の容易さ25%

“使えそう”

互換性-全体13%

“秋月電子のコネクタに使用可能”

総合品質13%

“品物は良いです^ ^3ピンや、2ピンで使ってみたりと重宝します。”

耐久性3%

“しっかりしたよい”

強さ3%

“しっかりしたよい”

What buyers complain about

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17%

“使い方ガイドがわかりにくい”

互換性-全体17%

“中間コネクタには使えませんでした。”

接続性 - 全体17%

“思ったよりコネクターが抜けやすいと感じました。”

17%

“緑が6本しか入っていない. 緑が6本、黒が14本、赤、黄、青はそれぞれ10本、合計50本ですが、必要だった緑が少なく足りない。”

総合品質13%

“価格なりの品質だけど使えそう”

コストパフォーマンス4%

“この品は高いが物はしっかりしていて、カシメの際も失敗はない。”

Top return reasons

商品の状態25%
不良材料/部品25%
互換性-全体25%
ロック機構13%
使用の容易さ13%

Common questions

Is qiコネクタ profitable to sell on Amazon Japan?
The niche generates ¥1.5M/yr across 26 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -6.3%. Flapen's verdict: Worth a look (59/100).
How competitive is the qiコネクタ niche?
15 brands and 19 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in qiコネクタ?
Top complaints mined from reviews: 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, 互換性-全体, 接続性 - 全体. The return rate is 0.3%.
What does it cost to enter the qiコネクタ niche?
Listings span ¥476.31–¥3545.31; the average listing price is ¥1272.11 (sweet spot $15–$100). The average incumbent carries 92 reviews — the moat a new listing must climb.