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延長コード1m

延長コード1m shows a $69.7M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

59
Worth a look

Top 39% of 4,191 DIY・工具・ガーデン niches · +2 vs the category median of 57

Market size 100Growth 25Conversion 76Competition 72Returns 98Price range 0Avg price 0Brand share 32Review moat 41Quality gap 63
This niche Category average · 4,191 niches

Is 延長コード1m profitable on Amazon?

According to Flapen's Amazon Japan niche tracking, 延長コード1m is a ¥69.7M/yr Amazon Japan market (894K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Dec. Verdict: Worth a look — 59/100.

延長コード1m: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved -0.3% over the last 90 days and 7.4% of searches end in a purchase.

¥69.7M

revenue / yr

Units sold / yr80K
Search volume / yr-0.3%894K
Conversion rate7.4%
Avg price¥1057.69

Who owns the niche?

The top 5 brands hold 86% of demand, so 14% of the market is open.

14%

open market share

Brands · sellers11 · 85
Top-5 product click share42%
Open market14%
Avg brand age47 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.

0/100

page quality · 40 products

Sponsored placement65%
New entrants (1y)3· 3 succeeded
Avg rating4.4★
Avg reviews2,419

Top 延長コード1m products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 42% of clicks — established leaders, but buyers still shop beyond them.

¥0¥2.8M¥5.6M¥8.4M¥11.1M101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

11 falling

Sellers

85

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

42%

Top 20: 81%

Open market

11%

  • エレコム(ELECOM)34%
  • オーム(OHM)19%
  • サンワサプライ(Sanwa Supply)15%
  • エルパ(ELPA)13%
  • TESSAN5%
  • AKIRARI3%
  • Open — no brand owns it (5 brands, 11%)

延長コード1m demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume894KCVR7.4%Products40Brands11Top 5 Brands86%OOS Rate1.0%Rating4.4★Reviews2,419Avg BSR#33
30K20KSpike '24Holiday '24Prime Day '25Spike '25Black Friday '25Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 2.0×

Top 延長コード1m search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • 延長コード1m434K/yr
  • えんちようこーど 1m152K/yr
  • 延長コード 1m78K/yr
  • 電源延長コード36K/yr
  • 延長コード 1500w以上18K/yr
  • 電源コード 3m16K/yr
  • 100v 延長コード13K/yr
  • 2m 延長コード15K/yr
  • 3m 延長コード16K/yr
  • 1m 延長コード14K/yr

What reviews say buyers love and hate about 延長コード1m

What buyers mention most, as a share of all reviews.

What buyers love

76% of reviews
使用の容易さ22%

普通に使えます

コストパフォーマンス15%

お手頃価格

総合品質10%

良品です

コネクタ/ポート/プラグ6%

USB. コンセントあるので. でっぱり部分に置くのは便利です。

充電5%

スマホワイヤレス充電

What buyers complain about

64% of reviews
充電16%

1ヶ月半で充電できなくなった

耐久性9%

すぐ壊れた

サイズ全体8%

小さいですが

総合品質6%

同等品の中で安かった

コストパフォーマンス6%

ちょっと高いかな

延長コード1m return rate & reasons

Why buyers send it back, as a share of all return requests.

0.4%

Return rate

0%

Fixable by listing

The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.

1充電
17%
2サイズ全体
15%
3コネクタ/ポート/プラグ
12%
4不良材料/部品
9%
5互換性-全体
9%

Common 延長コード1m questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores 延長コード1m 59/100 on Amazon Japan — Worth a look. The niche generates ¥69.7M/yr across 40 tracked products. 3 of 3 products launched in the last 360 days are still selling. Search demand moved -0.3% over the last 90 days.
Search demand for 延長コード1m on Amazon Japan peaks in Dec, where the busiest month runs 2.0× the quietest.