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54

toto 便座

Worth a look

Shows a $18.6M/yr market, but pricing outside the sweet spot ($21926.01 avg) keeps it on the watch list.

Market size 100Growth 26Conversion 13Competition 72Returns 97Price range 0Avg price 0Brand share 15Review moat 60Quality gap 87

Market size

Incredible¥18.6M

¥18.6M/yr · 81K searches

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Competition

Good42%

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

Review moat

Good1,092.55

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+1.0%

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

Brand share

Bad94%

top-5 brand share — brand-locked demand

Conversion

Bad1.0%

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

Avg price

Bad¥21926.01

avg listing price — sweet spot $15–$100

Price range

Bad¥1679.55–¥83405.30

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

According to Flapen's Amazon Japan niche tracking, toto 便座 is a ¥18.6M/yr Amazon Japan market (81K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Oct–Nov. Verdict: Worth a look — 54/100.

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

toto 便座 market data

Units sold / yr
500–750
avg 0–100/product
Revenue / yr
¥11.0M–¥16.4M
units × avg price
Conversion rate
1.0%
Avg BSR
#50
Page quality
0%
Prime
81%
Sponsored
69%
Out of stock
8.1%
Avg brand age
39 months
Avg seller age
158 days

Competition & brand share

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

Brands

10 rising

Sellers

249

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

42%

Top 20: 82%

Open market

4%

  • TOTO81%
  • BAYTINA4%
  • 東芝(TOSHIBA)4%
  • XQZWFP3%
  • SANEI(サンエイ)3%
  • ノーブランド品2%
  • Open — no brand owns it (4 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 87 weeks — +1.0% search growth over the last 90 days.
4K3KPrime Day '25Spike '25Black Friday '25Prime Day '26DecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Oct, Nov · busiest ÷ quietest = 2.0×

Top toto 便座 search terms

  • toto 便座67K/yr
  • 便座 toto12K/yr
  • toto便座3K/yr
All search terms

Top toto 便座 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%3%¥557K6%¥1.1M9%¥1.7M12%¥2.2M1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What buyers say about toto 便座

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

What buyers love

組み立て/インストール25%

“取付簡単❗️初めてでもダイジョブ❗️”

コストパフォーマンス22%

“リーズナブル”

使用の容易さ14%

“取り付けやすさ”

総合品質5%

“good quality”

快適さ-全体3%

“快適に、使ってます”

清掃の容易さ3%

“お手入れ楽ちん”

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3%

“説明書を良く読めば誰にでも取り付けは可能”

耐久性3%

“耐久性ですね”

サイズ全体2%

“サイズが合えばおすすめ”

広告と実際の製品の違い1%

“レビュー通り”

What buyers complain about

耐久性12%

“また壊れそうで心配です。”

サイズ全体9%

“小さい”

コストパフォーマンス6%

“保証期間内で無償で基板交換出来ましたが、期間を過ぎると出張料、部品代等で二万円近く費用が掛かるようです。”

組み立て/インストール6%

“取り付けてはいませんが”

総合品質5%

“品質が悪くなっています。動画をご覧いただければ、スプレーノズルがきちんと組み立てられていないことが分かります。角度がおかしく、90度になっていません。The quality is worse.”

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4%

“説明書がわかりずらい。”

使用の容易さ4%

“少し分かりづらいのが難点”

漏れ防止3%

“水回りは漏れが不安でした。”

清掃の容易さ3%

“汚れがつくと取りにくい”

強さ2%

“壊れやすい”

Top return reasons

サイズ全体31%
機能全体16%
組み立て/インストール7%
互換性-全体7%
5%
メカニズムの問題4%
不良材料/部品4%
総合品質3%
スプレー/フロー3%
耐久性2%

Common questions

Is toto 便座 profitable to sell on Amazon Japan?
The niche generates ¥18.6M/yr across 42 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +1.0%. Flapen's verdict: Worth a look (54/100).
How competitive is the toto 便座 niche?
10 brands and 249 sellers compete. The top 5 products take 42% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in toto 便座?
Top complaints mined from reviews: 耐久性, サイズ全体, コストパフォーマンス. The return rate is 0.5%.
When does demand for toto 便座 peak?
Demand peaks in Oct–Nov; the busiest month runs 2.0× the quietest.
What does it cost to enter the toto 便座 niche?
Listings span ¥1679.55–¥83405.30; the average listing price is ¥21926.01 (sweet spot $15–$100). The average incumbent carries 1,093 reviews — the moat a new listing must climb.