Module 1 · Lesson 2
Walmart Connect vs Amazon: The Efficiency Gap
What you’ll learn
- Why the Walmart auction feels familiar if you know Amazon
- The real difference: advertiser density, not mechanics
- The benchmark numbers people quote — and how to read them honestly
- What the gap means for you as an early mover
Almost everyone comparing Walmart Connect starts with Amazon — and that’s the right instinct, because the two platforms work in very similar ways. The interesting part isn’t how they differ mechanically. It’s how differently they’re crowded.
Same engine under the hood
Both platforms run a second-price keyword auction. You set a maximum cost-per-click (CPC) you’re willing to pay, and if you win, you pay just above the next-highest bid — not your full max. The auction winner is decided by relevancy + bid, so the most relevant product with a strong bid takes the placement.
If you’ve run Amazon Sponsored Products, none of this is new. Campaign structure, keyword targeting and match types will all feel familiar. That’s good news: your Amazon skills transfer.
Why this matters
Because the mechanics overlap, the incremental effort to run Walmart properly is smaller than it looks. Your listings, creative and keyword research mostly carry over — you’re adjusting for a new platform, not learning one from zero.
The real difference: competition
Here’s where Walmart pulls ahead for cost. Amazon’s ad marketplace is mature and saturated — lots of advertisers bidding on the same keywords, pushing CPCs up. Walmart Connect has far fewer active advertisers. Less competition in the auction means you often win placements for less.
The commonly cited benchmarks comparing Walmart Connect to Amazon look like this:
Read benchmarks carefully
These figures come from industry and platform sources and describe averages, not a promise. Your actual results depend on your category, listing quality and bids. Treat them as a signal that the opportunity is real — not as numbers you can bank before you’ve tested.
The trade-offs to go in with
Lower competition cuts both ways. Being honest about the downsides now will save you frustration later:
- Less historical data. Fewer advertisers and less scale means the algorithm has thinner data to optimise against, so early campaigns can be noisier.
- Smaller total volume. Walmart is the #2 retail media network, not #1. The absolute traffic on a keyword is usually lower than Amazon’s.
- Buy Box dependency. If your listing doesn’t hold the Buy Box, your sponsored ads won’t show at all — we cover this in the next lesson.
Why the gap is an opportunity
Low advertiser density is exactly what makes now a good time to start. Sellers who build ad infrastructure on Walmart today are laying groundwork that gets more expensive for later entrants to displace. Every week you run, you gather data, sharpen optimisation, and lower your costs — a compounding advantage while competition is still thin.
Quick recap
- Walmart and Amazon both use second-price keyword auctions — your Amazon skills transfer.
- The real difference is advertiser density: Walmart is far less crowded, so CPCs tend to be lower.
- Benchmarks (~55% lower CPC, ~3× CTR, ~25% ROAS vs Amazon) are averages, not guarantees.
- Fewer advertisers means an early-mover advantage that compounds as you gather data.