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Jennov

Fail

The top 5 brands take 100% of clicks, so Jennov is a Fail.

Flapen Score
45
45 / 100
Ranks 3,774 of 4,191 DIY・工具・ガーデン niches · −12 vs the category median of 57
Market size
¥1.3M/yr14K searches / yr
90-day growth
-6.4%search demand this quarter
Competition
54%top-5 click share · 1 brands · 4 sellers

Flapen Score

Jennov against its category

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

45Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Jennov market on Amazon at a glance

Shoppers on Amazon Japan searched for Jennov 14K times last year and spent an estimated ¥1.3M. One brand takes every click. Demand peaks in Oct–Nov–Dec. Flapen scores it 45 out of 100, a Fail.

01 · Demand

An estimated 0.5% of those searches ended in a purchase.

Shoppers searched for this 14K times in the last 12 months. That counts every search on Amazon Japan for this niche's terms. An estimated 0.5% of those searches ended in a purchase. Searches in the last 90 days moved -6.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated ¥1.3M a year.

Searches, last 12 months
14K
Growth, 90 days vs prior 90
-6.4%
Conversion, latest week
0.5%
Market size, estimated
¥1.3Ma year
Peak month
December3.0× the quietest month
Top search term
jennov 防犯カメラ9K searches a year

02 · Price

A sale here is worth ¥18378.34.

Listings sell for ¥18378.34 on average, from ¥3454.42 to ¥33931.97. Amazon reports units sold in ranges. This niche sold 250 to 500 a year. The average listing sells 0 to 100 of them. At ¥18378.34 that is ¥0 to ¥1.8M a year per listing.

Average price
¥18378.34above the $15 to $100 sweet spot
Price range
¥3454.42–¥33931.97
Amazon Japan median price
¥1942.07across 14,733 niches
Units sold a year
250–500
Units per listing a year
0–100
Revenue per listing a year
¥0–¥1.8M
Returns
1.9%of orders · Amazon Japan median 0.4%

03 · Entry bar

The bar here is ads.

100% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 25.6% of listings are out of stock. The average listing ranks #63 within 安全・セキュリティ. It carries 140 reviews at 4.16 stars, so a new listing needs social proof before a better product.

Sponsored listings
100%
Prime listings
100%
Out of stock, average day
25.6%
Average rank
#63in 安全・セキュリティ
Average rating
4.16 starsAmazon Japan average 4.15 stars
Average reviews
140per listing
Listings tracked
17

04 · Newcomers

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

1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 36 months on average, so the names here are settling in.

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

Products

Top Jennov products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Sign in to see the products

The products selling in this niche are for signed-in readers. Every market figure above stays open to everyone.

Competition

Competition: brands, sellers & click share

The top 5 products take 54% of clicks. Leaders hold, but buyers still shop past them.

Brands

1 falling

Sellers

4

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

54%

Top 20: 100%

Open market

0%

  • Brand 1100%

Demand

Jennov search demand

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

2K1KSpike '24Holiday '24Prime Day '25Spike '25Holiday '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Oct, Nov, Dec · busiest ÷ quietest = 3.0×

Reviews and returns

What reviews say buyers love and hate about Jennov

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

16%of positive reviews mention “コストパフォーマンス”
19%of negative reviews mention “接続性 - 全体”
1.9%of orders come back
“WiFが一瞬切れたりした後、自動では復帰しません。”
A buyer, on “接続性 - 全体”19% 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 Jennov questions

Answered from the same tracked data.