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63

コンベックス 7.5m

Launch it

A $3.5M/yr market growing +25.2% this quarter with returns at 0.5% — clears our launch bar.

Market size 96Growth 53Conversion 70Competition 57Returns 98Price range 0Avg price 0Brand share 20Review moat 83Quality gap 86

Returns

Incredible0.5%

return rate — above 5% kills the launch gate

Market size

Incredible¥3.5M

¥3.5M/yr · 26K searches

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Review moat

Great343.55

avg incumbent reviews — the moat a new listing must climb

Conversion

Good6.4%

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

Competition

Good51%

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

Growth

Good+25.2%

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

Brand share

Bad92%

top-5 brand share — brand-locked demand

Avg price

Bad¥2050.88

avg listing price — sweet spot $15–$100

Price range

Bad¥607.37–¥4266.08

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

According to Flapen's Amazon Japan niche tracking, コンベックス 7.5m is a ¥3.5M/yr Amazon Japan market (26K searches/yr). The top 5 brands hold 92% of demand. Verdict: Launch it — 63/100.

Data updated Jul 31, 2026 · scored weekly · How we score niches

コンベックス 7.5m market data

Units sold / yr
2K–2K
avg 0–100/product
Revenue / yr
¥3.1M–¥4.1M
units × avg price
Conversion rate
6.4%
Avg BSR
#173
Page quality
0%
Prime
86%
Sponsored
45%
Out of stock
0.8%
Avg brand age
61 months
Avg seller age
189 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 rising

Sellers

79

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

51%

Top 20: 92%

Open market

6%

  • タジマ47%
  • Komelon22%
  • ビッグマン(Bigman)15%
  • TAKAGI6%
  • Whllimsk2%
  • ノーブランド品2%
  • Open — no brand owns it (6 brands, 6%)

Demand & seasonality

Weekly Amazon search volume, last 95 weeks — +25.2% search growth over the last 90 days.
800600Spike '24Holiday '24Spike '25Black Friday '25Spike '26Prime Day '26DecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Top コンベックス 7.5m search terms

  • コンベックス 7.5m14K/yr
  • スケール 7.5m8K/yr
  • タジマ スケール 7.54K/yr
All search terms

Top コンベックス 7.5m 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%¥140K8%¥279K12%¥419K16%¥559K1101001K10K 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 コンベックス 7.5m

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

What buyers love

使用の容易さ33%

“すごく見やすいです。”

コストパフォーマンス23%

“コスパいい”

強さ8%

“丈夫そう”

耐久性4%

“使いやすく長持ちする”

落下/衝撃保護3%

“転落防止は大事”

水に強い3%

“防水効果あり、雨などに濡れても腐りにくく安全で、大きな家具はもちろん、部屋の幅や高さ、奥行きを測るのに安心な長さの商品です。”

ディスプレイ全体3%

“目盛りが見やすくてよい感じですが”

セキュリティ3%

“安心安定”

総合品質3%

“物自体は良いけれども”

広告と実際の製品の違い3%

“思った通り”

What buyers complain about

重い19%

“重い”

磁力/吸着力14%

“磁石つきかと思ったけどついてなかった”

耐久性11%

“しっかりしているようで、壊れやすい。”

強さ8%

“しっかりしているようで、壊れやすい。”

コストパフォーマンス8%

“望むならもう少し安くならないかな”

サイズ全体7%

“思いの外、デカった。”

不良材料/部品6%

“2個購入して1個は壊れていてメジャー部分が戻りませんでした。”

測定/読み取り精度6%

“長距離図らんのなら基本は無駄ですが、幅がある分ヨレないのでひとりでも測りやすいです。”

使用の容易さ3%

“ちょっと難あり”

3%

“しいて言えばもっとタジマみたいにいろんなカラーがあればいいと思いました。”

Top return reasons

磁力/吸着力44%
伸縮性/拡張性/弾力性11%
高さ11%
不良材料/部品11%
材料の品質11%
落下/衝撃保護6%
サイズ全体6%

Common questions

Is コンベックス 7.5m profitable to sell on Amazon Japan?
The niche generates ¥3.5M/yr across 29 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +25.2%. Flapen's verdict: Launch it (63/100).
How competitive is the コンベックス 7.5m niche?
12 brands and 79 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in コンベックス 7.5m?
Top complaints mined from reviews: 重い, 磁力/吸着力, 耐久性. The return rate is 0.5%.
When does demand for コンベックス 7.5m peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the コンベックス 7.5m niche?
Listings span ¥607.37–¥4266.08; the average listing price is ¥2050.88 (sweet spot $15–$100). The average incumbent carries 344 reviews — the moat a new listing must climb.