Amazon competitor analysis
Amazon competitor analysis from live listings, not a guide
Enter your product's ASIN or a keyword. Nolyn searches the marketplace, takes the top competitors by best sellers and reads each listing: price, rating, ratings count, Best Sellers Rank, Amazon's “bought in past month” label, variants, warranty and the review aspects buyers praise or criticize. You get one comparison table and where the openings are.
Example: water flossers on Amazon.comWhat you get
One table of the top competitors
Where each competitor is weak
Price gaps and openings
Example: water flossers on Amazon.com
A real run on October 17, 2026: “water flosser” on amazon.com sorted by best sellers (909 results), then the product details of the top five results. They are the five best-selling products in Amazon's Power Dental Flossers category, from a $19.99 cordless flosser to two Waterpik models near $100.
Volume leader
60K+ / month
COSLUS C20 at $35.98, “bought in past month”
Price range
$19.99–$99.99
Top 5 by best sellers, 909 search results
Durability complaints
61–86%
Negative share of durability mentions, 4 of 5 products
Newest listing
#3 in 6 months
Waterpik Gem 5100, first available April 10, 2026
| Product | Search position | Price | Rating | Ratings | Bought in past month | Rank in Power Dental Flossers | Durability complaints |
|---|---|---|---|---|---|---|---|
| COSLUS C20 Water Dental Flosser | #1 | $35.98 | 4.4★ | 54,566 | 60K+ | #1 | 1,659 of 2,228 |
| Waterpik Aquarius Countertop Water Flosser | #2 | $99.97 | 4.6★ | 158,452 | 50K+ | #2 | 2,223 of 2,975 |
| Onlyone Water Flosser | #3 | $19.99 | 4.5★ | 9,927 | 20K+ | #4 | 186 of 304 |
| Waterpik Cordless Gem 5100 | #4 | $49.99 | 4.1★ | 401 | 7K+ | #3 | not in summary |
| Waterpik Cordless Advanced | #5 | $99.99 | 4.2★ | 78,467 | 20K+ | #5 | 1,401 of 1,635 |
Search position is from the best-seller sort; price, rating, ratings, Amazon's “bought in past month” label and Best Sellers Rank are from each product's details a few seconds later (the search itself showed 8K+ for the Gem 5100). Durability complaints are negative mentions out of all durability mentions in Amazon's review aspect summary; the Gem 5100 summary has no durability aspect yet.
Durability is the whole category's weak spot
The best seller is the $36 cordless, not the $100 brand
Waterpik's $99.99 cordless loses on battery
A six-month-old listing is already #3
Every figure on this page was checked against the search and product-detail responses saved from this run. Sales are only the labels Amazon shows; Nolyn does not estimate units or revenue. Amazon pools ratings across a listing's variants (the COSLUS C20 lists 11 color and set variants), and the 8 top reviews read per product are the ones Amazon shows first, not all reviews.
Run it for your own product or accountHow it works
Find the competitors
Search the marketplace for your keyword, or for your ASIN's product type, sorted by best sellers, and keep the top five competing products.
Read each listing
Price, list price, rating, ratings count, star distribution, Best Sellers Rank, the “bought in past month” label, variants, warranty and date first available.
Read what buyers say
Amazon's review aspect summary with negative and positive mentions, and the top reviews Amazon shows for each product.
Compare and find openings
One table, the price ladder, each competitor's weakest aspects and where a product could compete, with the figure behind each point.
What it cannot do
Sales are only what Amazon shows: the “bought in past month” label and Best Sellers Rank. Nolyn does not estimate units, revenue or market share, and it has no search volume, ad spend or keyword rank data. Review data is Amazon's aspect summary and the top reviews of each product, not every review. Search results depend on the moment and may be personalized, and ratings are pooled across a listing's variants.
Questions
How do I do an Amazon competitor analysis?
Search your product's main keyword, sort by best sellers and take the top competing listings. For each one, compare price, rating and ratings count, Best Sellers Rank, the “bought in past month” label, variants and warranty, then read what reviewers complain about. Gaps in price or in the leaders' most common complaints are where a product can compete. Nolyn runs these steps from one ASIN or keyword.
Is there a free Amazon competitor analysis tool?
You can read the example and prepare the brief without an account. Running it requires signing in; new accounts get 100 free credits. Each run uses credits for the AI and the Amazon data it retrieves.
Does it estimate competitors' sales?
No. It reports the “bought in past month” label and Best Sellers Rank exactly as Amazon shows them. Tools that print unit or revenue estimates model them from rank; Nolyn leaves that out rather than guess.
Can I start from my own ASIN?
Yes. Enter the ASIN or paste the product link. Nolyn reads your listing, searches its product type and compares it with the top competitors in the same table.
How is this different from Helium 10 or Jungle Scout?
Those are subscription suites with sales estimates, keyword databases and Chrome extensions. Nolyn reads the live listings and reviews for one question and writes the comparison with the evidence behind each point. It has no keyword volume or sales estimates.
Which Amazon marketplaces are supported?
amazon.com, .co.uk, .ca, .de, .fr, .es, .it, .co.jp, .com.mx and .com.br. Reports are written in English.
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