Walmart DSP vs Amazon DSP: Which Retail Media Platform Fits Your Brand?

Walmart DSP and Amazon DSP both connect programmatic media buying with retail signals, but they are not interchangeable. The right choice depends on where your customers shop, which inventory matters, how your team buys media and which sales outcomes can be measured.

The comparison also needs a 2026 update. Amazon DSP has evolved into Amazon Ads Agent, with advanced programmatic capabilities available through Display, Video, and Audio campaigns and DVA+ advanced settings. Advertisers still use “Amazon DSP” as the familiar search term, so this guide uses it to describe Amazon's advanced programmatic route.

Quick answer: Choose Walmart DSP when Walmart shopper data, U.S. store and ecommerce sales, and Walmart-centered retail outcomes are central to the brief. Choose Amazon DSP when Amazon shopping and streaming signals, Amazon-owned inventory and broader programmatic format control matter more. Use both only when each platform has a distinct audience, inventory and measurement role.

Walmart DSP vs Amazon DSP at a glance

Important: The decision should follow the business question, not the platform name. Audience eligibility, inventory, attribution, fees and operating models vary by advertiser, market and partner. Confirm them before creative production or budget approval.

What is Walmart DSP?

Walmart DSP is part of Walmart Connect's offsite media offer and is powered by The Trade Desk. Walmart says advertisers can use actionable shopper insights to reach audiences across the open web, social media, connected TV, audio, gaming and other eligible environments.

Its strategic value comes from the relationship between media exposure and Walmart retail outcomes. Walmart Connect describes closed-loop measurement that can connect ad exposure across Walmart properties and offsite channels with eligible sales on Walmart's site, app and in stores.

Walmart DSP is therefore strongest when Walmart's customer and transaction signals are directly relevant to the brand. For a deeper view of audiences, channels and reporting, read the Walmart DSP Guide 2027.

What is Amazon DSP in 2026?

Amazon says Amazon DSP is now part of Amazon Ads Agent. Former Amazon DSP capabilities remain available through DVA+ advanced settings, including detailed audience targeting, frequency management, deal IDs, custom bidding and programmatic delivery controls.

The platform can support display, online video, streaming TV and audio across Amazon-owned environments and premium third-party supply. Amazon-owned inventory can include Amazon.com, Prime Video, Twitch, Fire TV and other eligible properties, depending on market, campaign type and entitlement.

This guide keeps the term “Amazon DSP” because buyers, agencies and procurement teams still use it. For a comparison between Amazon's simplified and advanced buying routes, read Amazon DSP vs Sponsored Display.

1. Audience data: which retail signal matches the brief?

Walmart DSP audience strength

Walmart's advantage is its omnichannel retail context. Approved first-party signals can help advertisers reach customer groups informed by online and store shopping behavior. This is especially valuable when the brand needs to understand whether offsite media influences Walmart purchases across digital and physical retail.

Amazon DSP audience strength

Amazon combines commerce signals with browsing and streaming behavior across its ecosystem. That can support product discovery, category prospecting, remarketing and non-endemic use cases that benefit from Amazon's media and entertainment touchpoints.

Decision rule: Choose the dataset that best represents the customer behavior you need to influence and measure. Do not choose a retail DSP simply because the platform has a large audience library.

2. Inventory: where must the message appear?

Walmart Connect positions its offsite media across open-web, social, CTV, audio, gaming and other channels. Walmart DSP is useful when the plan needs to extend Walmart audiences beyond Walmart's own properties and evaluate the downstream retail effect.

Amazon's advanced route has a distinctive owned-and-operated inventory advantage. Prime Video, Twitch, Fire TV and Amazon.com can sit alongside premium third-party sites and apps in one programmatic plan. This can matter when streaming TV, online video and Amazon media environments are central to reach and storytelling.

3. Measurement: what can each platform prove?

Walmart Connect says its first-party data can tie eligible ad exposure to sales on Walmart's site and in stores. Its measurement offer also includes attribution, incrementality, brand impact and campaign insights, subject to qualification and product availability.

Amazon reporting can connect eligible media activity with Amazon outcomes and provides shared audience and reporting workflows inside Amazon Ads Agent. The exact sales, attribution and study options depend on advertiser type, campaign, market and setup.

Neither platform removes the need for a measurement brief. Before launch, document:

• the business outcome and eligible conversion events;

• online versus store sales coverage;

• attribution windows and reporting latency;

• new, repeat and lapsed-customer definitions;

• incrementality or brand-study availability;

• how retailer reporting will be reconciled with the advertiser's analytics.

4. Access, costs and operating model

Public Walmart materials do not present one universal price card or minimum that applies to every advertiser. Eligibility, seat structure, data fees, technology costs, service fees and media commitments should be confirmed in writing. The guide on how to access Walmart DSP provides a practical commercial checklist.

Amazon offers self-service and managed operating routes. Amazon's public display advertising information says managed service typically requires a $50,000 minimum, but that amount can vary by country. Self-service budget requirements and partner-managed terms depend on the campaign and provider.

Compare total effective cost, not only the media CPM. Include platform fees, audience data, creative adaptation, verification, measurement products and management support.

5. When Walmart DSP is the better fit

Start with Walmart DSP when most of these statements are true:

• Walmart is a major retail partner or sales channel for the brand;

• Walmart customer and transaction signals are central to targeting;

• online and in-store Walmart sales are important measurement outcomes;

• the plan needs offsite CTV, video, display, audio or gaming linked to Walmart audiences;

• the campaign is centered on the U.S. omnichannel retail opportunity;

• the brand can confirm eligibility, data permissions and reporting coverage.

6. When Amazon DSP-style buying is the better fit

Start with Amazon's advanced route when most of these statements are true:

• Amazon commerce signals are directly relevant to the audience hypothesis;

• Prime Video, Twitch, Fire TV or other Amazon-owned inventory matters;

• the plan spans display, online video, streaming TV and audio;

• the buyer needs deal IDs, custom bidding, detailed frequency rules or advanced supply controls;

• the campaign needs broader multi-market programmatic activation;

• the team has access to the right Amazon Ads operating model.

AdGeeks supports Amazon Ads planning, platform access and managed activation for brands and agencies that need advanced programmatic execution.

Should a brand use both Walmart DSP and Amazon DSP?

Using both can make sense when the brand has meaningful customer demand in both retail ecosystems and each platform answers a different question. Walmart DSP might focus on Walmart customer growth and store-plus-online sales. Amazon's advanced route might focus on Amazon audiences, streaming reach and Amazon-owned inventory.

Do not duplicate the same audience, creative and KPI across both platforms without a test design. That creates overlap without learning. Assign each DSP a defined role, control exposure where possible, standardize naming and compare outcomes against a shared business framework.

A practical platform-selection scorecard

How AdGeeks can help

AdGeeks helps brands compare retail media DSPs without turning the decision into a feature checklist. We map the audience hypothesis, inventory role, measurement plan, access route, fee structure and internal operating capacity.

For multi-platform plans, we can define which retailer signal belongs in which campaign, how responsibilities are split and which metrics can be compared without flattening important differences.

Choose the platform after the use case is clear

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Choose the platform after the use case is clear

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Frequently asked questions

Sources

1. Walmart Connect, “Offsite Media.” Accessed October 14, 2026. https://www.walmartconnect.com/solutions/offsite-media

2. Walmart Connect, “Omnichannel Ad Measurement & Closed-Loop Insights.” Accessed October 14, 2026. https://www.walmartconnect.com/insights/measurement

3. Walmart Connect, “Integrated measurement solutions.” Accessed October 14, 2026. https://www.walmartconnect.com/insights/integrated-measurement-solutions

4. Amazon Ads, “Amazon DSP is now part of Amazon Ads Agent.” Verified October 14, 2026. https://advertising.amazon.com/solutions/products/amazon-dsp

5. Amazon Ads, “Amazon Ads Agent.” Verified October 14, 2026. https://advertising.amazon.com/adtech-solutions/amazon-ads-agent

6. Amazon Ads, “Display advertising.” Verified October 14, 2026. https://advertising.amazon.com/products/display-ads