What Is the Second Buy Box?
Amazon does not just display a single "Add to Cart" button on product pages. On many listings, there is now a second, slightly smaller offer block displayed directly below the primary Buy Box. This block carries the heading "Other buying option" or "Second offer" and shows an alternative seller with a different price.
The Difference from the Old "Other Sellers" List
Previously, there was only a small text link below the Buy Box: "Other Sellers on Amazon" or "See all buying options." Fewer than 5% of buyers clicked that link. The second Buy Box is fundamentally different: it is displayed directly on the product page, in its own box, with its own "Add to Cart" button. The buyer does not need to click a hidden link -- the offer is immediately visible.
What the Second Buy Box Looks Like
Directly below the primary Buy Box, a separate section appears. It displays:
- The price of the second seller
- Shipping information (e.g., "Fulfilled by Amazon" or "Ships from seller")
- Its own "Add to Cart" button
The design is deliberately prominent. Amazon wants to give buyers a genuine alternative -- and simultaneously ensure that more sellers have a realistic chance at sales.
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When Does the Second Buy Box Appear?
The second Buy Box does not appear on every listing or under all conditions. Amazon decides algorithmically when to display it. From analyzing many listings, the following patterns emerge:
Price Difference Between 2 and 5 Percent
The second Buy Box typically appears when the second-cheapest seller has a price that is 2-5% below the Buy Box holder, but does not win the primary Buy Box for other reasons (e.g., fulfillment method, seller metrics). Amazon then deliberately shows the buyer the cheaper alternative.
Conversely, when the price difference is too large (over 10-15%), Amazon often hides the second Buy Box -- presumably because Amazon considers the second offer unreliable or too risky at that point.
Different Fulfillment Type
A common scenario: the Buy Box holder is an FBA seller (Fulfilled by Amazon, Prime-eligible), and the second seller is an FBM seller (merchant-fulfilled) with a significantly lower price. Amazon then displays the second Buy Box to give price-sensitive buyers an alternative -- even though this alternative is not Prime-eligible.
This pattern also works in reverse: an FBM seller holds the Buy Box (e.g., due to a significantly lower price), and an FBA seller is shown as the second Buy Box because Prime shipping justifies the higher price for some buyers.
High Seller Quality for Both Sellers
The second Buy Box is only displayed when Amazon considers both sellers trustworthy. Sellers with poor metrics (high ODR, frequent late shipments) are generally not considered for the second Buy Box.
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Why the Second Buy Box Matters
Many sellers ignore the second Buy Box. This is a mistake. Here is why:
5-10% of Sales Flow Through It
The second Buy Box generates an estimated 5-10% of sales on a listing. This sounds small at first -- but for a product with 100 sales per month, that is 5-10 additional sales. At a margin of EUR 5-10 per unit, this adds up quickly.
Better Than "Other Offers"
The classic "Other Sellers" list might bring you 1-2% of sales. The second Buy Box delivers 3-5x as much. The difference: visibility. A dedicated button on the product page versus a hidden text link.
Less Competition for Slot 2
While 5 or 10 sellers aggressively fight for the first Buy Box and push each other's prices down, hardly anyone thinks strategically about the second Buy Box. This is your opportunity: if you realistically cannot win the first Buy Box (e.g., because Amazon itself sells as a Vendor), you can specifically target the second Buy Box.
Margin Preservation When Losing the Buy Box
Instead of continuously lowering your price to reclaim the first Buy Box, you can deliberately target the second Buy Box -- and maintain a higher margin in the process. Better to have 5 sales at EUR 8 margin (second Buy Box) than 0 sales at a price that leaves no margin at all.
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Repricing Strategy for the Second Buy Box
Most repricers are designed to win the first Buy Box. But an intelligent repricer can also target the second Buy Box. Here is how to implement it:
Scenario 1: FBM Below FBA Price
If the Buy Box holder is an FBA seller, you can position yourself as an FBM seller at 2-4% below the FBA price. Amazon recognizes that your price is lower but the FBA seller has the fulfillment advantage -- and displays your offer as the second Buy Box.
Example:
| Seller | Fulfillment | Price | Position |
|---|---|---|---|
| Seller A | FBA | EUR 24.99 | First Buy Box |
| You | FBM | EUR 23.49 | Second Buy Box |
Scenario 2: Deliberately Targeting Slot 2
When the first Buy Box is held by Amazon itself or by a seller with perfect metrics and deep pricing, the fight for Slot 1 is often hopeless -- and margin-destroying. Set your min price so that you remain profitable, and let the repricer operate in the 2-5% range below the Buy Box price.
Scenario 3: Strategic Use in Arbitrage
If you sell a product via arbitrage and know you cannot compete against the manufacturer or Amazon itself for Slot 1, the second Buy Box is your realistic target. You earn less per unit than at Slot 1, but you earn something -- instead of landing at zero sales.
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What This Means for Your Repricing Configuration
If you want to systematically leverage the second Buy Box, you need to consider a few things in your repricing configuration:
Calculate Your Min Price Carefully
Your min price must cover all costs -- even at the smaller margin that the second Buy Box typically delivers. Calculate: purchase price + Amazon fees + shipping costs (for FBM) + minimum margin.
Do Not Blindly Undercut
The goal is not to have the cheapest price on the listing. The goal is to land in the sweet spot for the second Buy Box: cheap enough that Amazon recognizes your offer as a genuine alternative, but not so cheap that you destroy your margin.
Choose Fulfillment Type Strategically
If you use FBM and most competitors use FBA, the second Buy Box is often your natural position. Amazon likes to show an FBM seller with a lower price as an alternative to the FBA seller in the first Buy Box.
Differentiate Repricing Strategy Per Product
Not every product is suited for a second-Buy Box strategy. For products where you can realistically win the first Buy Box, you should continue targeting Slot 1. For products with dominant competition on Slot 1, align your strategy specifically toward Slot 2.
You can find more about different repricing strategies in our detailed guide.
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Frequently Asked Questions (FAQ)
Does Amazon show the second Buy Box on all listings?
No. The second Buy Box only appears on listings where Amazon's algorithm determines that a second offer is relevant for the buyer. This depends on price difference, fulfillment method, and seller quality. On listings with only one seller or with too large a price gap, it is not displayed.
Can I see if I hold the second Buy Box?
Amazon does not offer an official metric for the second Buy Box in Seller Central. You can check it manually by visiting your product page as a customer and looking for your offer under "Other buying option." Some third-party tools also offer second Buy Box tracking.
Is the second Buy Box visible on mobile devices?
Yes, the second Buy Box is displayed on mobile devices -- although the placement varies in prominence depending on the device and app version. On desktop browsers, it is generally more visible than on smartphones, where the buyer needs to scroll further.
Is the second Buy Box worth it for low-price products?
For products under EUR 10, the absolute margin is already slim. If the second Buy Box brings you 5-10% of sales, it can still be worthwhile -- but only if your min price is carefully calculated. At a EUR 5 selling price and EUR 0.50 margin per unit, 5 additional sales equal EUR 2.50. You need to decide whether the effort is worth it.
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Conclusion
The second Buy Box is not a consolation prize -- it is a strategic opportunity. For sellers who cannot realistically win the first Buy Box, it offers a path to profitable sales without margin destruction. The key lies in the right repricing configuration: deliberately targeting Slot 2, carefully calculating your min price, and consciously choosing your fulfillment strategy.
Ignoring the second Buy Box means leaving 5-10% of potential sales on the table. Using it strategically gives you a competitive advantage that most sellers overlook.
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