Rakuten → Amazon · Mercari → Mercari · updated monthly
Buy low on Rakuten.
Sell on Amazon.
Every day we check thousands of Amazon Japan bestsellers against Rakuten prices and points. Members get the products that still clear a profit after Amazon fees, with links to both listings.
Members
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This month's list
| Product | Category | Amazon rank | Buy on Rakuten | Sell on Amazon | Est. fees | Est. profit |
|---|
Profit = Amazon price − Rakuten price + Rakuten points − estimated fees (10% referral + ¥450 FBA + ¥100 inbound shipping). Prices move daily: check both listings and Amazon's restrictions for the brand before buying.
Repeat winners from price history
Products that were profitable on many of the days we tracked them.
| Product | Buy from | Days tracked | Profitable | Median profit | Best |
|---|
New this update
Members see new and dropped products here, and get the same digest by email or Telegram.
Mercari → Mercari playbook
1. Buy under the sold median
Use Mercari's own "sold" filter for each target item. Buy listings priced 25% or more under the median of the last 20 sold.
2. Fix what lowers the price
Bad photos, short titles, missing model numbers, and wrong categories. Relist with clear photos and the exact model in the title.
3. Count every cost
Mercari fee 10% plus shipping (¥210–¥750 by size). Skip anything under ¥800 profit after both.
Where to start
Our matched list shows which brands and models move fast on Amazon. Those same models often sell well secondhand on Mercari.
We don't collect data from Mercari automatically; its terms don't allow it. The playbook is for manual research.
Pricing
Monthly
Full list every month, weekly alerts, repeat-winner history.
Yearly
Two months free. Everything in Monthly.