Amazon Product Research: The Criteria, the Step-by-Step Method, How to Analyse Competitors, and the 12 Best Amazon Product Research Tools Compared

Last verified September 2026. Amazon product research is the work of finding a product with real demand, competition you can beat and a margin that survives Amazon's fees. Four criteria decide it: demand, competition, margin and fit. An Amazon product research tool speeds up the data gathering, but it does not replace the method. This guide covers the criteria, a step-by-step process, how to size up the sellers already in your niche, FBA fees and restrictions, and the tools worth paying for.

The criteria: what makes a product worth selling on Amazon

Demand. Look at Best Sellers Rank and the estimated units sold each month. A commonly used rule of thumb is a minimum of about 300 sales a month, roughly 10 a day, for the products already selling in the niche. Amazon Best Sellers Rank explains how rank turns into a sales estimate.

Competition. Count how many sellers are on the first page and how strong they are. A niche where the top sellers have fewer than about 400 reviews is easier to break into than one where they have thousands. Stay away from the extremes: a product that is extremely popular has stiff competition, and one that is extremely niche may not have enough buyers.

Margin. Work out the unit margin before you commit: selling price, minus cost of goods, minus freight, minus Amazon's referral fee, minus FBA fees. Use Amazon's own fee calculator for the last two. Products that are simple and inexpensive to make leave more room for margin than complex ones.

Fit. Small, light and durable products cost less to store and ship and are less likely to arrive damaged and come back. A common rule of thumb is under 5 pounds and within Amazon's standard-size tiers. Also check for restricted or gated categories, hazmat rules, heavy seasonality and intellectual property. A product that sells well but sits under someone else's patent or trademark is a problem, not an opportunity.

How to find products to sell on Amazon: the method

1. Pick a category you can learn about. Interest and knowledge help you spot problems a spreadsheet will miss, but keep an open mind: evaluate a product on whether it is a good product, not on whether you like it.

2. Build a shortlist from Amazon's own lists (Best Sellers, New Releases, Amazon Movers & Shakers) and from a research tool. Note the items that catch your eye and drop anything heavily seasonal.

3. Check demand and its trend over time. A product with steady sales across the year is safer than one with one big month; price and rank history tools show the full year.

4. Check competition: number of sellers, review counts, star ratings and what the negative reviews complain about.

5. Estimate the margin using the unit margin formula above and Amazon's fee calculator.

6. Check FBA fit: size tier, weight, restrictions and returns risk.

7. Decide the model. Most sellers who find a product this way sell it private label: take a product that already sells and put it back on the market with your own brand and an improvement, rather than inventing something new.

8. Validate with a small first order before you commit to a large one.

If you want a list of specific products rather than a method, that is a different question with a different answer every quarter; the best products to sell on Amazon post keeps a current list.

Amazon competitor analysis: how to size up the sellers already there

Once you have a shortlist, study the sellers who hold the first page. Put the top competitors in a shared sheet and work through this checklist for each:

• Listing audit: title (in Amazon's brand, model, product-type format, free of promotional wording), images, bullets and the USPs they highlight, description and A+ content. Note what they do well and where the listing is thin, and whether they answer questions in the Q&A section, which also tells you what shoppers ask.

• Branding: spend 15 to 20 minutes on their tone, packaging and A+ content to see whether your brand would blend in or stand apart.

• Reviews: count, star rating and quality (detailed reviews with substance, or one-liners), and above all the themes in the negative reviews. A repeated complaint shows you where a better product could win.

• Pricing and Buy Box: who holds it, how often the price moves, whether they discount. Use their prices as a reference, not a standard; your margin has to work.

• Keyword targeting: the primary keywords in their titles and what else they appear to rank for. Amazon keyword research covers how to find them.

• Advertising: whether they run Sponsored Products on the same keywords, and what those terms cost per click. Long-tail terms usually carry a lower CPC than the head terms competitors fight over.

• Sales and fulfilment: estimated monthly units, FBA or merchant-fulfilled, and whether they carry Prime.

The point is to find a gap you can fill. If listing quality is high, reviews are good and ad spend is heavy, that niche is expensive to enter. If the negative reviews all name one flaw, you have a product improvement to build around, and Amazon listing optimization covers how to build the stronger listing once you have it.

FBA fit: fees, size tiers and restrictions

Two fee layers apply to most FBA sellers. The referral fee is a percentage of the sale price and depends on the category; about 15% is the common default, with lower and higher rates for some categories. FBA fulfilment fees cover picking, packing and shipping and depend on the item's size tier and weight. Amazon's fee calculator gives both for a specific ASIN, and it is the number to trust when you compare a product against your margin target.

Also check restricted and gated categories, which may need approval before you can list, and hazmat rules for anything with batteries, liquids or flammable materials. Seasonality matters for storage fees too, since stock that sits unsold at the wrong time of year costs money. Amazon FBA software covers the fee and profit tools sellers use.

Reading the signals: what the numbers mean

Sales rank is relative to the category, so the same rank means different unit sales in a large category than in a small one. Treat estimated units as a range and cross-check two sources when a decision depends on it.

Review velocity, meaning how fast a competitor gains reviews, tells you more about current demand than the total count. A product with 5,000 reviews that adds three a week is slowing down; one with 300 that adds 30 a week is growing.

Price history shows whether a product's sales depend on discounting. And watch the seasonal trap: a product that looks strong because you checked in November may be dead in March. Look at a full year of rank history before you commit.

The 12 best Amazon product research tools compared

These are the tools sellers commonly use for product research, named as facts, not ranked. Prices are starting points; check each tool's pricing page before you buy.

When you choose, weigh data accuracy, marketplace coverage, pricing model and whether the tool fits your model, whether that is private label, wholesale or arbitrage. Not every tool does the same job and some work best together: a suite for the database, a price tracker for history, an extension for checking a listing as you browse. Most offer a trial or a free plan, so test two before you pay for one. A tool that tells you a product sells well is not the same as a tool that tells you it will make money; run the margin calculation yourself.

Where to source it once you have found it

Research tells you what to sell. Sourcing tells you where to buy it. Private label sellers usually go to a manufacturer, arbitrage sellers buy from retailers and wholesalers, and some sellers start from marketplace suppliers. Private label manufacturer, find products on AliExpress and online arbitrage cover each route in detail.

After the launch: what buyer messages tell you about the product

Once the product is live, buyer messages are research data. Pre-sales questions show what the listing fails to explain. Complaints show what the product gets wrong. Both feed the next round of research and the next listing update, and a support inbox that tags messages by product and issue turns that stream into a feedback loop rather than a pile of tickets. See Amazon helpdesk software for how eDesk connects to Amazon.

FAQ

How do I do product research for Amazon?

Choose a category, build a shortlist from Amazon's lists and a research tool, then check demand, competition, margin and FBA fit for each candidate. Validate the best one with a small order.

What is the best Amazon product research tool?

It depends on your model and budget. Suites cover research, keywords and listing tools together; extensions give quick data on any listing; price trackers help with seasonality. Test a trial or free plan before you pay.

How do I find products to sell on Amazon FBA?

Look for products with steady demand, beatable competition, a healthy margin after fees, and a small, light, durable size that fits FBA's rules. Avoid restricted categories unless you have approval.

How do I analyse competitors on Amazon?

Audit the top sellers' listings, reviews, pricing, keywords, advertising and fulfilment method. Look for a gap, such as a repeated complaint in their negative reviews, that you can fill.

What are the best products to sell on Amazon?

That changes with the season and the market, so a fixed list goes stale quickly. Our list of trending products is kept current, and the method above lets you test any idea for yourself.

Is there a free Amazon product research tool?

Yes. Amazon's own Best Sellers and Movers & Shakers lists are free, and several tools offer free plans or extensions. Free options usually give less data or fewer searches than paid plans.

Once you have found your product, make sure the buyer questions it brings get answered fast

See Amazon helpdesk software for how eDesk connects to Amazon.