Update, October 12, 2026: Prime Big Deal Days 2026 has ended. The check below works the same way for Black Friday and holiday sales.
Prime Big Deal Days 2026 ran October 6-7, starting at 12:01am PT. Before you fill a cart, there's a quicker check than setting up a price-tracking tool: compare the deal price against what you've actually seen the item cost recently — not just the "original" price printed on the listing. Our free deal value checker does exactly that.
Prime Big Deal Days October 2026: the dates
Amazon's own announcement put the sale at October 6-7, 2026, a two-day event exclusively for Prime members. That's the window this calculator was built around, though the underlying math works for any retailer's sale.
Is this Amazon deal actually good? Look past the percentage
The discount percentage shown on a listing is calculated against the retailer's own "was" price — a number the retailer sets, and one that can be inflated in the days before a sale to make the markdown look bigger. A more honest test is comparing the current deal price to a price you've genuinely seen recently, whether from memory, a screenshot, or a price-history site.
Amazon fake discount checker: what "not a real discount" looks like
Enter a listed price of $100, a deal price of $70, and a recent price of $65, and the math tells a different story than the 30% badge: the deal price is actually 7.7% more than what you'd seen it for recently. That's not a hypothetical — it's the exact kind of gap price-history data regularly turns up around major sale events.
Prime Big Deal Days deal checker vs. price trackers
Tools like CamelCamelCamel and Keepa build full price-history charts, which is genuinely useful — but it means finding the exact product page and tracking it, sometimes through a browser extension, and Keepa's free tier has gotten more limited over time. This tool skips all of that: type in the three numbers you're already looking at and get an answer immediately.
Try the Prime Big Deal Days Checker → · Stacking multiple discount codes instead? See the Discount Calculator.
Sources: Amazon (aboutamazon.com), "Prime Big Deal Days 2026 is set for October 6-7, 2026"; price-tracker comparison reviews (goaura.com, thesellingguys.com), cross-checked 2026-09. This is general shopping information, not financial advice.
