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Cosco Booster Seat

Fail

The top 5 brands take 93% of clicks, so Cosco Booster Seat is a Fail.

Flapen Score
46
46 / 100
Top 41% of 2,472 Baby Products niches · +2 vs the category median of 44
Market size
$239K/yr236K searches / yr
90-day growth
+16.9%search demand this quarter
Competition
50%top-5 click share · 8 brands · 14 sellers

Flapen Score

Cosco Booster Seat against its category

The dotted line is the Baby Products average. Past it, Cosco Booster Seat is stronger. Inside it, weaker.

46Fail
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Cosco Booster Seat market on Amazon at a glance

Shoppers on Amazon United States searched for Cosco Booster Seat 236K times last year and spent an estimated $239K. The top 5 brands take 93% of clicks. Flapen scores it 46 out of 100, a Fail.

01 · Demand

An estimated 2.1% of those searches ended in a purchase.

Shoppers searched for this 236K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.1% of those searches ended in a purchase. Searches in the last 90 days moved +16.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $239K a year.

Searches, last 12 months
236K
Growth, 90 days vs prior 90
+16.9%
Conversion, latest week
2.1%
Market size, estimated
$239Ka year
Peak month
October1.5× the quietest month
Top search term
slim booster seat50K searches a year

02 · Price

A sale here is worth $47.01.

Listings sell for $47.01 on average, from $19.54 to $125.21. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $47.01 that is $12K to $24K a year per listing.

Average price
$47.01inside the $15 to $100 sweet spot
Price range
$19.54–$125.21
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
250–500
Revenue per listing a year
$12K–$24K
Returns
4.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

74% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #16 within Car Seats & Accessories. It carries 4,900 reviews at 4.41 stars, so a new listing needs social proof before a better product.

Sponsored listings
74%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#16in Car Seats & Accessories
Average rating
4.41 starsAmazon United States average 4.42 stars
Average reviews
4,900per listing
Listings tracked
23

04 · Newcomers

6 of last year's 7 launches cleared the first-year sales bar.

7 products launched here in the last 12 months. 6 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 45 months on average, so the names here are settling in.

Launched, last 12 months
7
Successful launches
6Amazon's first-year sales bar
Average brand age
45 months

Products

Top Cosco Booster Seat 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 12, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 50% of clicks. Leaders hold, but buyers still shop past them.

$0$24K$48K$72K$96K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

8 falling

Sellers

14

Est. top-5 brand share

93%

Top 20: 100%

Est. top-5 click share

50%

Top 20: 96%

Open market

4%

  • Cosco42%
  • Diono23%
  • bubblebum12%
  • Graco11%
  • Hiccapop5%
  • Chicco3%
  • Open — no brand owns it (2 brands, 4%)

Demand

Cosco Booster Seat search demand

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

9K7KSpike '24Holiday '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Search terms

Top Cosco Booster Seat search terms shoppers use

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

  • slim booster seat50K/yr
  • cosco booster seat40K/yr
  • narrow booster seat35K/yr
  • slim booster seat for car 3 across18K/yr
  • compact booster seat12K/yr
  • slim fit booster seat13K/yr
  • extra narrow car booster seat10K/yr
  • diono solana 27K/yr
  • slim booster car seat10K/yr
  • slim booster5K/yr

Reviews and returns

What reviews say buyers love and hate about Cosco Booster Seat

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

12%of positive reviews mention “Quality-Overall”
10%of negative reviews mention “Size-Overall”
4.0%of orders come back
“is very loose”
A buyer, on “Size-Overall”10% 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.

18 topics

NegativePositive

FAQ

Common Cosco Booster Seat 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