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G-fun

Fail

Shoppers spend an estimated $0 a year here, so G-fun is a Fail.

Flapen Score
38
38 / 100
Ranks 4,071 of 4,191 DIY・工具・ガーデン niches · −19 vs the category median of 57
Market size
¥0/yr63K searches / yr
90-day growth
-4.3%search demand this quarter
Competition
38%top-5 click share · 4 brands · 6 sellers

Flapen Score

G-fun against its category

The dotted line is the DIY・工具・ガーデン average. Past it, G-fun is stronger. Inside it, weaker.

38Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The G-fun market on Amazon at a glance

Shoppers on Amazon Japan searched for G-fun 63K times last year and spent an estimated ¥0. All 4 brands take every click. Flapen scores it 38 out of 100, a Fail.

01 · Demand

An estimated 0.0% of those searches ended in a purchase.

Shoppers searched for this 63K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 0.0% of those searches ended in a purchase. Searches in the last 90 days moved -4.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥0 a year.

Searches, last 12 months
63K
Growth, 90 days vs prior 90
-4.3%
Conversion, latest week
0.0%
Market size, estimated
¥0a year
Peak month
March1.3× the quietest month
Top search term
g-fun34K searches a year

02 · Price

A sale here is worth ¥1241.15.

Listings sell for ¥1241.15 on average, from ¥113.75 to ¥16378.58. Amazon reports units sold in ranges. This niche sold 1K to 1K a year. The average listing sells 0 to 100 of them. At ¥1241.15 that is ¥0 to ¥124K a year per listing.

Average price
¥1241.15above the $15 to $100 sweet spot
Price range
¥113.75–¥16378.58
Amazon Japan median price
¥1942.07across 14,733 niches
Units sold a year
1K–1K
Units per listing a year
0–100
Revenue per listing a year
¥0–¥124K
Returns
0.6%of orders · Amazon Japan median 0.4%

03 · Entry bar

The bar here is ads.

94% of listings pay for placement with sponsored ads. 14% ship with Prime. On an average day, 4.7% of listings are out of stock. The average listing ranks #698 within 建築金物. It carries 13 reviews at 4.22 stars, so a new listing needs social proof before a better product.

Sponsored listings
94%
Prime listings
14%
Out of stock, average day
4.7%
Average rank
#698in 建築金物
Average rating
4.22 starsAmazon Japan average 4.15 stars
Average reviews
13per listing
Listings tracked
36

04 · Newcomers

0 of last year's 1 launches cleared the first-year sales bar.

1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 33 months on average, so a newcomer is not facing entrenched names.

Launched, last 12 months
1
Successful launches
0Amazon's first-year sales bar
Average brand age
33 months

Products

Top G-fun products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 31, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 38% of clicks, no more. An open shelf where new products get seen.

¥0¥0¥0¥0¥01101001K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

4 falling

Sellers

6

Est. top-5 brand share

100%

Top 20: 100%

Est. top-5 click share

38%

Top 20: 77%

Open market

0%

  • G-Fun81%
  • G-fun11%
  • GFUN6%
  • zenHome2%

Demand

G-fun search demand

Weekly searches over the year, seasonality beneath. Pick a range.

2K1KSpike '25Holiday '25Spike '26MayJunJulAugSepOctNovDecJanFebMarAprMayJunJul

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top G-fun search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • g-fun34K/yr
  • g-fun フレーム12K/yr
  • gfun12K/yr
  • g-fun コネクタ5K/yr

Reviews and returns

What reviews say buyers love and hate about G-fun

We read the reviews and the return reasons for every product selling here.

18%of positive reviews mention “使用の容易さ”
25%of negative reviews mention “コストパフォーマンス”
0.6%of orders come back
“値段なりです”
A buyer, on “コストパフォーマンス”25% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

20 topics

NegativePositive

FAQ

Common G-fun questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data