Is ledger profitable to sell on Amazon Japan?

The niche generates ¥11.1M/yr across 22 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -34.7%. Flapen's verdict: Skip it (46/100).

How competitive is the ledger niche?

7 brands and 28 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 97% of demand.

What do buyers complain about in ledger?

Top complaints mined from reviews: 充電, サイズ全体, 使用の容易さ. The return rate is 1.1%.

When does demand for ledger peak?

Demand peaks in Jan–Feb–Dec; the busiest month runs 2.0× the quietest.

What does it cost to enter the ledger niche?

Listings span ¥5416.44–¥61931.83; the average listing price is ¥16944.88 (sweet spot $15–$100). The average incumbent carries 425 reviews — the moat a new listing must climb.

ledger

Skip it

Pricing outside the sweet spot ($16944.88 avg) — this niche doesn't clear our bar today.

Market size

Incredible¥11.1M

¥11.1M/yr · 33K searches

Returns

Great1.1%

return rate — above 5% kills the launch gate

Review moat

Great425.18

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay56%

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

Conversion

Bad2.0%

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

Growth

Bad-34.7%

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

Brand share

Bad97%

top-5 brand share — brand-locked demand

Avg price

Bad¥16944.88

avg listing price — sweet spot $15–$100

Price range

Bad¥5416.44–¥61931.83

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

Signals High Price

According to Flapen's Amazon Japan niche tracking, ledger is a ¥11.1M/yr Amazon Japan market (33K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan–Feb–Dec. Verdict: Skip it — 46/100.

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

ledger market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: ¥8.5M–¥12.7M; units × avg price
Conversion rate: 2.0%
Avg BSR: #684
Page quality: 0%
Prime: 91%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 42 months
Avg seller age: 184 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

7 rising

Sellers

Top-5 brand share

97%

Top 20: 100%

Top-5 click share

56%

Top 20: 99%

Open market

Ledger70%
TANGEM14%
Generic6%
CRYPTOBAR4%
TREZOR3%
imKey2%
Open — no brand owns it (1 brand, 1%)

Demand & seasonality

Weekly Amazon search volume, last 83 weeks — -34.7% search growth over the last 90 days.

Peak months: Jan, Feb, Dec · busiest ÷ quietest = 2.0×

Open Trend

Top ledger search terms

ledger9K/yr -22.9%1.2% conv.
コールドウォレット7K/yr -37.5%0.7% conv.
ハードウェアウォレット5K/yr -21.0%0.1% conv.
ledger nano x6K/yr -59.2%3.1% conv.
ハードウォレット仮想通貨4K/yr -23.1%1.4% conv.
ledger nano s plus3K/yr -33.2%4.1% conv.

All search terms

Top ledger 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★)2 products missing review or click data not plotted

All 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

[Ledger] Nano X ファミリーパック - Bluetooth対応クラシック暗号資産ウォレット3台

Ledger¥44421.495.0★2 rev

Ledger Nano S Plus - クラシック暗号資産ウォレット

Ledger¥8017.654.1★302 rev

Ledger Nano X - Bluetooth搭載クラシック暗号資産ウォレット

Ledger¥15623.544.1★108 rev

Tangemウォレット 3枚セット - ビットコイン、イーサリアム、NFTなど暗号資産の安全な管理 - 100%オフラインのハードウェアウォレット - カード型コールドストレージで資産を保護。ブラック、コンパクトサイズ

TANGEM¥10943.484.5★1,118 rev

Nano Xと Nano S Plus - バックアップ用暗号資産ウォレットパック

Ledger¥22141.515.0★2 rev

Newest

by launch date

[CRYPTOBAR] CORE ビットコインウォレットハードウェアウォレット用ステンレス SUS304 暗号資産仮想通貨シードフレーズ復元フレーズ保管高耐熱1450度スチールウォレット BIP39 24語対応 CNC深彫りタイル文字意匠登録済物理保存ストレージ

CRYPTOBAR¥7173.5837 rev

5mo ago

Nano X 認証暗号資産ハードウェレット - 認証チップで秘密鍵をオフライン保管、1000以上の暗号通貨・NFTをBluetoothで外出先でも安心管理

Generic¥6082.740 rev

8mo ago

【日本正規販売品】Ledger Recovery Keyが追加されたLedger Flex 一世界で最も直感的なハードウェアウォレット素早く簡単なバックアップアクセスで強化 (シルバー+Recovery Key)

Generic¥5416.440 rev

8mo ago

Ledger Nano Gen5 - 暗号資産ウォレット - 暗号資産を安全に購入・取引

Ledger¥27857.56149 rev

9mo ago

Ledger Recovery Keyが追加されたLedger Flex 一世界で最も直感的なハードウェアウォレット素早く簡単なバックアップアクセスを強化 (グラファイト+Recovery Key)

Ledger¥38709.37689 rev

1y ago

What buyers say about ledger

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

What buyers complain about

充電50%

“バッテリートラブルで充電出来ず、使えなかった”

サイズ全体25%

“小さいので操作しにくいです。”

使用の容易さ25%

“小さいので操作しにくいです。”

Top return reasons

接続性 - 全体30%

傷に強い20%

互換性-全体20%

不良材料/部品20%

ソフトウェア/アプリケーション10%

Common questions

Is ledger profitable to sell on Amazon Japan?: The niche generates ¥11.1M/yr across 22 tracked products. 1 of 4 products launched in the last 360 days are still selling. 90-day search growth is -34.7%. Flapen's verdict: Skip it (46/100).
How competitive is the ledger niche?: 7 brands and 28 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 97% of demand.
What do buyers complain about in ledger?: Top complaints mined from reviews: 充電, サイズ全体, 使用の容易さ. The return rate is 1.1%.
When does demand for ledger peak?: Demand peaks in Jan–Feb–Dec; the busiest month runs 2.0× the quietest.
What does it cost to enter the ledger niche?: Listings span ¥5416.44–¥61931.83; the average listing price is ¥16944.88 (sweet spot $15–$100). The average incumbent carries 425 reviews — the moat a new listing must climb.