Cosco Booster Seat
FailThe top 5 brands take 93% of clicks, so Cosco Booster Seat is a Fail.
- Flapen Score
- 46 / 100Top 41% of 2,472 Baby Products niches · +2 vs the category median of 4446
- 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.
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.
Top sellers
by estimated 90-day click share
Cosco Topside Backless Booster Car Seat Lightweight Booster Seats for Cars 40-100 lbs Backless Booster Seat for Car Leo
- Price
- $22.43
- Rating
- 4.7/5
- Reviews
- 14,902
- Age
- 20y ago

Cosco Topside Backless Booster Car Seat Lightweight Booster Seats for Cars 40-100 lbs Backless Booster Seat for Car Organic Waves
- Price
- $22.18
- Rating
- 4.7/5
- Reviews
- 14,902
- Age
- 3y ago

BubbleBum Inflatable Booster Car Seat Foldable Lightweight Backless Travel Booster Seat for Kids Portable Carseat for Toddler Fits 3 Across Compact for Uber - Ages 4-11 Year Old - Black
- Price
- $35.61
- Rating
- 4.3/5
- Reviews
- 6,763
- Age
- 13y ago

BubbleBum Teleport Backless Booster Car Seat Kids Booster Seat for Car 40-100 lbs Shrinks Down for Travel Portable Carseat for Everyday Use and Foldable 4 Year Old + Child/Toddler - Black
- Price
- $55.24
- Rating
- 4.3/5
- Reviews
- 101
- Age
- 1y ago

Diono Solana No Latch Pack of 2 Backless Booster Car Seats Lightweight Machine Washable Covers Cup Holders Black
- Price
- $52.74
- Rating
- 4.7/5
- Reviews
- 3,506
- Age
- 4y ago
Trending
estimated 90-day click momentum
Diono Solana Lite Backless Booster Car Seat Lightweight & Portable for Travel Machine Washable Covers 40-100 lbs Black Storm
- Price
- $19.54
- Rating
- 4.2/5
- Reviews
- 31
- Age
- 2mo ago

Diono Airi Lightweight High Back Booster Seat Foldable Travel Friendly Slim 3-Across Fit 40100 lbs/4357 in Frontal Impact Protection Black
- Price
- $49.99
- Rating
- 2.6/5
- Reviews
- 63
- Age
- 2mo ago

Diono Connect3 RXT Backless Booster Slim Fit 3-Across in Many Mid-Sized Sedans and SUVs for Children from 40-120 lbs. Lightweight with Latch connectors
- Price
- $62.83
- Rating
- 3.8/5
- Reviews
- 5
- Age
- 1y ago

Diono Airi Lightweight High Back Booster Seat Foldable Travel Friendly Slim 3-Across Fit 40100 lbs/4357 in Frontal Impact Protection Pink
- Price
- $54.32
- Rating
- 2.6/5
- Reviews
- 63
- Age
- 2mo ago

Diono Solana No Latch Single Backless Booster Car Seat Lightweight Machine Washable Covers Cup Holders Blue
- Price
- $32.98
- Rating
- 4.7/5
- Reviews
- 3,506
- Age
- 4y ago
Newest
by launch date
Diono Solana Lite Backless Booster Car Seat Lightweight & Portable for Travel Machine Washable Covers 40-100 lbs Black Storm
- Price
- $19.54
- Rating
- 4.2/5
- Reviews
- 31
- Age
- 2mo ago

Diono Airi Lightweight High Back Booster Seat Foldable Travel Friendly Slim 3-Across Fit 40100 lbs/4357 in Frontal Impact Protection Black
- Price
- $49.99
- Rating
- 2.6/5
- Reviews
- 63
- Age
- 2mo ago

Diono Airi Lightweight High Back Booster Seat Foldable Travel Friendly Slim 3-Across Fit 40100 lbs/4357 in Frontal Impact Protection Pink
- Price
- $54.32
- Rating
- 2.6/5
- Reviews
- 63
- Age
- 2mo ago

Cosco Kids Finale DX 2-in-1 Booster Car Seat Forward Facing Toddler Car Seat (40-65 lbs) and Belt Positioning High Back Booster (40-100 lbs) Dusk
- Price
- $79.40
- Rating
- 4.5/5
- Reviews
- 81
- Age
- 9mo ago

Cosco Kids Topside Booster Car Seat Pack of 2 Lightweight Travel Chair Easy-Clean Cover Belt Guide Fits 40-100 lbs 43.4-57 in Leo
- Price
- $43.65
- Rating
- 4.4/5
- Reviews
- 62
- Age
- 10mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 50% of clicks. Leaders hold, but buyers still shop past them.
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.
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.
“is very loose”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
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









