Skip to content
54

tone

Worth a look

Shows a $10.4M/yr market, but pricing outside the sweet spot ($2941.45 avg) keeps it on the watch list.

Market size 100Growth 23Conversion 5Competition 75Returns 98Price range 0Avg price 0Brand share 29Review moat 72Quality gap 76

Market size

Incredible¥10.4M

¥10.4M/yr · 880K searches

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Competition

Great40%

top-5 click share — an open shelf

Review moat

Good639.16

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay88%

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

Growth

Bad-4.6%

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

Conversion

Bad0.4%

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

Avg price

Bad¥2941.45

avg listing price — sweet spot $15–$100

Price range

Bad¥79.85–¥29726.43

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

According to Flapen's Amazon Japan niche tracking, tone is a ¥10.4M/yr Amazon Japan market (880K searches/yr). The top 5 brands hold 88% of demand. Verdict: Worth a look — 54/100.

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

tone market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
¥7.4M–¥8.8M
units × avg price
Conversion rate
0.4%
Avg BSR
#75
Page quality
0%
Prime
84%
Sponsored
69%
Out of stock
4.5%
Avg brand age
48 months
Avg seller age
158 days

Competition & brand share

Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.

Brands

17 falling

Sellers

97

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

40%

Top 20: 72%

Open market

11%

  • トネ(TONE)77%
  • Generic4%
  • Share-Me2%
  • ロブテックス(Lobtex)2%
  • ベッセル(VESSEL)2%
  • ENGINEER2%
  • Open — no brand owns it (11 brands, 11%)

Demand

Weekly Amazon search volume, last 22 weeks — -4.6% search growth over the last 90 days.
25K15KPrime Day '26Mar '26Mar '26Apr '26May '26May '26Jun '26Jul '26

Top tone search terms

  • tools268K/yr
  • tone183K/yr
  • トネ 工具123K/yr
  • 便利工具93K/yr
  • tone 工具28K/yr
  • tool17K/yr
  • 工具 便利10K/yr
  • 便利工具 プロ13K/yr
  • 工具 セール10K/yr
  • 作業工具8K/yr
All search terms

Top tone 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%¥414K8%¥828K12%¥1.2M16%¥1.7M101001K10K 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 tone

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

What buyers love

使用の容易さ28%

“そこそこ使えます。”

総合品質11%

“優れたピンポンチ”

コストパフォーマンス10%

“お手頃価格”

サイズ全体7%

“ちっちゃくて可愛い”

強さ5%

“丈夫”

コンパクトさ4%

“コンパクトで良いです”

持ち運びやすさ3%

“バイクツーリングに必携. バイクツーリングで愛用しています。”

清掃の容易さ3%

“水垢をやさしく落としやすい使い勝手の良い掃除ヘラ”

耐久性3%

“耐久性良さそうです”

広告と実際の製品の違い2%

“評判通り”

What buyers complain about

サイズ全体21%

“小さい”

耐久性8%

“2カ月で壊れる”

使用の容易さ7%

“トルクかかりにくいです”

コストパフォーマンス7%

“一般的なDIYユーザーには若干高価かもしれません。”

総合品質6%

“SK TOOLSは買収により今や中国資本傘下で純然なアメリカのツールとは言えず品質も落ちたとの評判で米国工具マニア、プロメカニックのブログや掲示板などで酷評されています。”

握り心地4%

“握るところの指穴が小さくて硬いものを断ち切る場合は指が擦れて痛いです。”

重い3%

“重い”

磁力/吸着力2%

“付け根の、緑の部分が すぐに、割れて、磁石が 出てきてしまいます。”

強さ2%

“壊れやすい”

匂い2%

“少し油の匂いがする”

Top return reasons

サイズ全体24%
不良材料/部品18%
メカニズムの問題7%
広告と実際の製品の違い6%
総合品質6%
商品の状態5%
機能全体4%
追加アイテム/添付ファイル3%
握り心地3%
使用の容易さ3%

Common questions

Is tone profitable to sell on Amazon Japan?
The niche generates ¥10.4M/yr across 51 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -4.6%. Flapen's verdict: Worth a look (54/100).
How competitive is the tone niche?
17 brands and 97 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in tone?
Top complaints mined from reviews: サイズ全体, 耐久性, 使用の容易さ. The return rate is 0.4%.
What does it cost to enter the tone niche?
Listings span ¥79.85–¥29726.43; the average listing price is ¥2941.45 (sweet spot $15–$100). The average incumbent carries 639 reviews — the moat a new listing must climb.