Is ub185dz profitable to sell on Amazon Japan?

The niche generates ¥11.2M/yr across 13 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is +14.2%. Flapen's verdict: Worth a look (51/100).

How competitive is the ub185dz niche?

7 brands and 94 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 95% of demand.

What do buyers complain about in ub185dz?

Top complaints mined from reviews: 騒音レベル, サイズ全体, 強さ. The return rate is 0.9%.

When does demand for ub185dz peak?

Demand peaks in Dec; the busiest month runs 1.9× the quietest.

What does it cost to enter the ub185dz niche?

Listings span ¥6195.45–¥31327.52; the average listing price is ¥11951.44 (sweet spot $15–$100). The average incumbent carries 438 reviews — the moat a new listing must climb.

ub185dz

Worth a look

Shows a $11.2M/yr market, but pricing outside the sweet spot ($11951.44 avg) keeps it on the watch list.

Market size

Incredible¥11.2M

¥11.2M/yr · 34K searches

Returns

Incredible0.9%

return rate — above 5% kills the launch gate

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Review moat

Great438.23

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+14.2%

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

Conversion

Okay2.8%

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

Competition

Bad76%

top-5 click share — a locked-up shelf

Brand share

Bad95%

top-5 brand share — brand-locked demand

Avg price

Bad¥11951.44

avg listing price — sweet spot $15–$100

Price range

Bad¥6195.45–¥31327.52

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

Signals High Price

According to Flapen's Amazon Japan niche tracking, ub185dz is a ¥11.2M/yr Amazon Japan market (34K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Dec. Verdict: Worth a look — 51/100.

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

ub185dz market data

Units sold / yr: 750–1K; avg 100–250/product
Revenue / yr: ¥9.0M–¥12.0M; units × avg price
Conversion rate: 2.8%
Avg BSR: #48
Page quality: 0%
Prime: 62%
Sponsored: 69%
Out of stock: 0.9%
Avg brand age: 25 months
Avg seller age: 155 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

95%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

Makita(マキタ)30%
ノーブランド品24%
SHIBASHO22%
Mizuumi10%
TAKAHASHI HONSHA10%
Amoresbat3%
Open — no brand owns it (1 brand, 2%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +14.2% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.9×

Open Trend

Top ub185dz search terms

ub185dz20K/yr +5.8%2.8% conv.
マキタ充電式ブロワ ub185dz4K/yr +33.5%1.1% conv.
マキタ ub185dz5K/yr +24.7%2.4% conv.
ub185d4K/yr +14.0%1.6% conv.

All search terms

Top ub185dz 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

マキタ(Makita) 充電式ブロワ 18V バッテリ・充電器別売 UB185DZ

Makita(マキタ)¥7561.304.4★3,808 rev

マキタ UB185DZ アクセサリーバッグ付【本体+バッグ】 18V 充電式ブロワー

SHIBASHO¥9896.204.1★19 rev

充電式ブロワ 18V バッテリ・充電器別売 UB-185DZ

ノーブランド品¥7097.734.4★4 rev

2026新登場ブロワー洗車強力ブロアー充電式コードレス送風と集じん1台2役マキタ18Vバッテリー対応可能 4000mAh大容量バッテリー2個付属手持ち式軽量エアブロワー小型庭掃除枯葉掃除機除雪作業充電器付き日本語取扱説明書付き (ブルー)

Mizuumi¥6195.454.1★153 rev

充電式ブロワ 18V バッテリ・充電器別売 UB185DZ【008】

ノーブランド品¥6978.175.0★1 rev

Newest

by launch date

充電式ブロワ 18V バッテリ・充電器別売 UB185DZ【008】

ノーブランド品¥6978.171 rev

6mo ago

Mizuumi¥6195.45153 rev

7mo ago

ブロワー充電式軽量化マキタブロワー互換マキタ 18v バッテリー BL1850B 5000mAh 2個小型 DC18RC充電器付ブロワーと集じん機の1台2役洗車落ち葉庭掃除除雪 PC掃除吹き飛ばし集塵器掃除機トリガー風量調整青

Amoresbat¥8897.2343 rev

7mo ago

[セット品] 正規品 18V 充電式ブロワ UB185DZ ソフトバッグ A-67153 セットブロワー

ノーブランド品¥12619.061 rev

9mo ago

充電式ブロワ 18V バッテリ・充電器別売 UB-185DZ

ノーブランド品¥7097.734 rev

9mo ago

What buyers say about ub185dz

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

What buyers love

清掃の容易さ17%

“グリル部分やミラー部分等、ふき取りにくい部分は特に恩恵あり。”

使用の容易さ13%

“使い勝手が良い”

軽い10%

“軽い、隙間、コンパクト”

バッテリーの内蔵9%

“バッテリーが優秀”

コストパフォーマンス9%

“お得です”

総合品質5%

“概ね良好”

持ち運びやすさ4%

“コードレスはいいですね。”

コンパクトさ3%

“軽い、隙間、コンパクト”

強さ3%

“作動良好です。”

騒音レベル2%

“音はそれ程気になりません”

What buyers complain about

騒音レベル11%

“音がうるさい。”

サイズ全体8%

“合わなかったです。”

強さ8%

“強力だは無かった”

充電5%

“2年でバッテリー充電しなくなって壊れました。”

重い5%

“バッテリーを大きくすると重くなるし・・。”

コストパフォーマンス4%

“同じものを頼もうと思っても買った時よりだいぶ値上がりしてる。”

機能全体4%

“動きませんでした。”

バッテリーの内蔵4%

“バッテリー一個では足りません。”

総合品質4%

“不満もありますが、電池2個ついてこの価格なので☆3にしました”

商品の状態3%

“中古品ですが必要十分です。”

Top return reasons

商品の状態24%

不良材料/部品11%

機能全体9%

充電8%

サイズ全体7%

互換性-全体7%

広告と実際の製品の違い6%

強さ4%

使用の容易さ4%

清掃の容易さ3%

Common questions

Is ub185dz profitable to sell on Amazon Japan?: The niche generates ¥11.2M/yr across 13 tracked products. 7 of 7 products launched in the last 360 days are still selling. 90-day search growth is +14.2%. Flapen's verdict: Worth a look (51/100).
How competitive is the ub185dz niche?: 7 brands and 94 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 95% of demand.
What do buyers complain about in ub185dz?: Top complaints mined from reviews: 騒音レベル, サイズ全体, 強さ. The return rate is 0.9%.
When does demand for ub185dz peak?: Demand peaks in Dec; the busiest month runs 1.9× the quietest.
What does it cost to enter the ub185dz niche?: Listings span ¥6195.45–¥31327.52; the average listing price is ¥11951.44 (sweet spot $15–$100). The average incumbent carries 438 reviews — the moat a new listing must climb.