Amazon Japan

Amazon Japan is a ¥180.9B a year market across 14,733 niches in 4 categories. Flapen's verdicts: 1,670 Pass, 8,135 Maybe, 4,928 Fail. The opportunity sits in specific niches, not in the marketplace as a whole.

The niches Flapen tracks on Amazon Japan generate ¥180.9B a year across 4 categories. The tracked niches drew 53.2M Amazon searches last week. The median tracked niche is a ¥2.2M a year market.

The biggest categories we track on Amazon Japan are ドラッグストア at ¥84.0B a year, DIY・工具・ガーデン at ¥40.3B a year, and スポーツ＆アウトドア at ¥33.1B a year. Size alone is not a verdict. Growth and competition decide where a launch makes sense.

The fastest-growing categories on Amazon Japan this quarter by 90-day search growth are スポーツ＆アウトドア at +17.8%, DIY・工具・ガーデン at +2.8%, and ドラッグストア at +2.2%. おもちゃ at -2.6% are cooling.

Marketplace-wide search demand on Amazon Japan is steady all year. The busiest month runs 1.4× the quietest.

1,670 of the 14,733 niches Flapen tracks on Amazon Japan score a Pass today, the top tier of the 0 to 100 score.

Flapen's top-scored niches on Amazon Japan right now are 熊笛 at 81, 水鉄砲 at 80, and 熊鈴 at 79 out of 100.

Flapen scores every niche it tracks on Amazon Japan from 0 to 100 on ten weighted checks: big market, trending, high conversion, open market, no dominant brand, quality gap, low review barrier, low returns, avg price, and price range. The score grades it Pass, Maybe, or Fail.