Prime Day 2026 vs Walmart Deal Days | Price Comparison
Prime Day 2026: Amazon vs Walmart Deal Days head-to-head
3,200 SKUs tracked across both events. Winners, losers, and where CPG brands should focus next year's Q3 spend.
The head-to-head numbers
Amazon Prime Day 2026 (July 8-9) generated an estimated $14.2B in GMV, up 12% YoY. Walmart Deal Days (July 15-16) hit $8.4B, up 18% YoY.
On paper, Amazon wins. But looking at the categories where the events overlap on identical SKUs, the picture changes: Amazon's average discount was 34%, while Walmart's was 28% — but Walmart offered better prices on 41% of matched SKUs.
Same-brand price gap (median across 3,200 identical SKUs) was 4.2% — historically the tightest gap between these two events. Just 3 years ago it was 11.8%.
Category-by-category winners
Where each event dominated by category share of GMV:
| Category | Prime Day | Deal Days | Winner |
|---|---|---|---|
| Electronics | $4.1B | $1.8B | Amazon |
| Fashion + Apparel | $1.9B | $1.2B | Amazon |
| Beauty | $1.4B | $0.6B | Amazon |
| Grocery + Fresh | $0.9B | $2.6B | Walmart |
| Home + Kitchen | $2.3B | $1.5B | Amazon |
| Baby + Family | $0.8B | $1.4B | Walmart |
| Toys | $0.6B | $0.4B | Amazon |
| Auto | $0.3B | $0.6B | Walmart |
Pattern: Amazon owns discretionary + electronics. Walmart owns essentials + family. This category polarization is intensifying, not narrowing.
CPG brand implications
The bifurcation matters for Q3 2027 marketing spend. Brands historically split promo budgets 60/40 (Amazon-favored). Our data suggests the optimal split now depends on category:
- Electronics + Beauty brands: Keep 70-75% Prime Day. Amazon's buyer intent is 3x higher for these categories.
- Grocery + Family brands: Shift to 60% Walmart Deal Days. Household shoppers are more engaged.
- Fashion brands: 50/50 split. Amazon offers reach; Walmart offers value-tier positioning.
- Home + Kitchen brands: Prime Day still wins by 55%, but Deal Days closing gap fast.
Source : https://www.productdatascrape.com/prime-day-vs-walmart-deal-days.php
Original https://www.productdatascrape.com
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The 3-minute takeaway
Prime Day is still bigger overall, but Walmart Deal Days is winning the categories that matter for household purchasing power — grocery, family essentials, auto.
For CPG teams: plan category-specific event calendars, not brand-wide event calendars. The days of one-size-fits-all promo strategy are over.
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