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55

waitley

Worth a look

Shows a $19.3M/yr market, but pricing outside the sweet spot ($6535.14 avg) keeps it on the watch list.

Market size 100Growth 20Conversion 37Competition 64Returns 96Price range 0Avg price 0Brand share 8Review moat 85Quality gap 93

Market size

Incredible¥19.3M

¥19.3M/yr · 101K searches

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Quality gap

Great4.0★

avg incumbent rating — lower means beatable quality

Review moat

Great298.72

avg incumbent reviews — the moat a new listing must climb

Competition

Good46%

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

Conversion

Okay2.9%

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

Growth

Bad-9.2%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Avg price

Bad¥6535.14

avg listing price — sweet spot $15–$100

Price range

Bad¥2673.51–¥13655.05

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

According to Flapen's Amazon Japan niche tracking, waitley is a ¥19.3M/yr Amazon Japan market (101K searches/yr). The top 5 brands hold 97% of demand. Verdict: Worth a look — 55/100.

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

waitley market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
¥16.3M–¥19.6M
units × avg price
Conversion rate
2.9%
Avg BSR
#114
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
3.0%
Avg brand age
30 months
Avg seller age
243 days

Competition & brand share

The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 falling

Sellers

8

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

46%

Top 20: 91%

Open market

1%

  • waitley43%
  • MichstaBe24%
  • Meng riben13%
  • zingely11%
  • twolskyy6%
  • cootikieli2%
  • Open — no brand owns it (1 brand, 1%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.2% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.7×

Top waitley search terms

  • waitley31K/yr
  • waitley 18v バッテリー5K/yr
  • ウェイトレー18vバッテリー11K/yr
  • waitleyマキタ18v互換バッテリー13K/yr
  • ウェイトレイ互換バッテリー18v9K/yr
  • ウェイトレイ バッテリー6K/yr
  • ウェイトレイ6K/yr
  • マキタ 18v バッテリー waitley4K/yr
  • ウエイトレー18v互換バッテリー5K/yr
  • ウエイトレイ互換バッテリー18v最新4K/yr
All search terms

Top waitley 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%¥772K8%¥1.5M12%¥2.3M16%¥3.1M101001K10K 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 waitley

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

What buyers love

バッテリーの内蔵17%

“ウエイトレーのブランドは、マキタ互換バッテリーの中では大変評判の良いバッテリーです。”

充電14%

“おすすめの充電器”

コストパフォーマンス10%

“リーズナブル”

耐久性9%

“使えてます”

使用の容易さ8%

“シンプルイズスト”

総合品質8%

“そもそもこのメーカーはマキタ互換バッテリーにおいては最大手と言って良く. youtubeの検証動画においても優秀な結果でしたので信頼して良いと思います。”

互換性-全体6%

“マキタ互換はWaitley・・・って決めてます。”

軽い4%

“軽くてよかった”

保管容量3%

“大容量タイプ”

安全基準2%

“安心・コスパ最高”

What buyers complain about

充電36%

“2個共に充電致しません”

重い9%

“使用本体が、重くなる。”

耐久性7%

“壊れた”

バッテリーの内蔵4%

“5Ahにも届かないとは非常にがっかりです。”

サイズ全体4%

“デカい. 40vMAXの4Aと同じくらいの大きさ。”

コストパフォーマンス3%

“マキタバッテリーの価格が高いと思っている人はお薦めです”

総合品質3%

“内部機能セル品質等劣りますが、この互換商品はトップレベル、コスパも良い。”

不良材料/部品2%

“不良品の連絡”

保管容量1%

“純正より容量少なく感じる”

使用の容易さ1%

“全く使えません。”

Top return reasons

充電71%
不良材料/部品7%
互換性-全体5%
機能全体4%
バッテリーの内蔵4%
広告と実際の製品の違い2%
サイズ全体2%
接続性 - 全体1%
耐久性1%
重い1%

Common questions

Is waitley profitable to sell on Amazon Japan?
The niche generates ¥19.3M/yr across 29 tracked products. 6 of 6 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (55/100).
How competitive is the waitley niche?
7 brands and 8 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in waitley?
Top complaints mined from reviews: 充電, 重い, 耐久性. The return rate is 0.8%.
When does demand for waitley peak?
Demand is steady year-round — the busiest month runs 1.7× the quietest.
What does it cost to enter the waitley niche?
Listings span ¥2673.51–¥13655.05; the average listing price is ¥6535.14 (sweet spot $15–$100). The average incumbent carries 299 reviews — the moat a new listing must climb.