Amazon just announced that Prime Big Deal Days, its fall version of Prime Day, will run Oct. 6-7.
The 48-hour sale kicks off at 12:01 a.m. Pacific on Oct. 6, with deals in more than 35 categories and fresh batches dropping at midnight, 8 a.m. and 1 p.m. Pacific.
That part is the same old October ritual. Here’s what’s new.
Alexa can now set deal alerts by category, show up to 365 days of price history on a product, and let you set a target price on any item.
And then there’s the headline feature: Auto-Buy. Flip it on, and Alexa purchases the item for you the moment it hits your target.
So here we are. A retailer built a button that can spend your money without you in the room.
I’ve been a Prime member for years, and I’ll shop this sale like I shop every one of them: with a list and a limit. But Auto-Buy is the feature you should think hardest about before Oct. 6. Here’s why, and the five rules I’d set first.
Why Auto-Buy deserves a hard look
Auto-Buy isn’t evil. For a shopper who knows exactly what they want and exactly what it’s worth, it’s a convenience. It could even keep you from overpaying in the heat of the moment.
But look at who designed it and why. A retailer’s job is to sell more, and every friction point between wanting and owning costs them money. Auto-Buy removes the last one: the second where you look at the total and think, “Do I really need this?”
That’s not a knock on you. It’s a knock on the design. Smart people spend fortunes engineering that pause out of your day.
And Amazon’s own track record matters here. In September 2025, the Federal Trade Commission announced a $2.5 billion settlement with the company: a $1 billion civil penalty plus $1.5 billion in refunds to roughly 35 million consumers.
The FTC alleged Amazon used deceptive interfaces to enroll people in Prime without their consent, then made canceling deliberately hard. FTC Chairman Andrew N. Ferguson said Amazon “used sophisticated subscription traps designed to manipulate consumers into enrolling in Prime.”
Amazon agreed to a clear decline button, plain disclosure of terms, and cancellation as easy as signup. Fine. But when the same company hands you a feature that buys things on its own, you’re allowed to be skeptical. I am.
So here are the rules. Write them down before the sale, not during it.
1. Make the list first — and only the list
Every deal event is engineered to make you buy things you didn’t know existed 10 minutes earlier. Three deal drops a day for 48 hours is six separate invitations to wander.
The defense is boring and it works: Write down what you actually need before Oct. 6. Include the model, the size and the most you’ll pay. Then shop the list. Not the front page, not the “Today’s Big Deals” carousel, not the alerts. The list.
If something’s not on it, it’s not a deal. It’s a purchase you weren’t going to make.
2. Set your target price from the 365-day history, not the strike-through ‘list price’
Amazon’s new Price History tool is actually useful. It shows up to a year of what an item actually sold for. Use it.
Then ignore the crossed-out number next to the sale price. The FTC’s own Guides Against Deceptive Pricing say a “former price” is only legitimate if the item was really offered at that price, regularly, for a meaningful stretch.
A price nobody ever paid isn’t a discount. It’s an anchor designed to make the sale price look like a gift.
So your target price should be at or below the lowest price in that 365-day chart — not some percentage off a number that may be fiction.
If you want more on this, I covered the tricks in “Prime Day Starts Soon: 7 Ways to Tell a Real Deal From a Fake” back in June.
Quick heads-up — companies spend billions figuring out how to separate you from your money. I’ve spent my career exposing those tricks. Sign up for the free Money Talks Newsletter and keep more of what you earn. 10 seconds, no spam, ever.
3. Time a free trial (or share a household membership) instead of paying $139 to shop a sale
Prime Big Deal Days is for Prime members only. Membership costs $14.99 a month or $139 a year, and Amazon would love for you to sign up for a year to save $30 on a blender.
Don’t. If you’re not already a member, Amazon offers a free 30-day trial if you’re eligible. Start it a few days before Oct. 6, shop the sale, and put a reminder on your calendar to cancel before day 30. The whole event costs you nothing.
If you don’t qualify for the trial, one month at $14.99 beats a year at $139 by $124. Cancel afterward. And thanks to that FTC settlement, canceling is supposed to be as easy as joining.
There are cheaper doors, too. Prime Access runs $6.99 a month for people on qualifying government assistance programs, and 18- to 24-year-olds get a six-month free trial through Prime for Young Adults. There are more options in “6 Ways to Get Amazon Prime for Free or Cheap.”
Then there’s sharing. Amazon’s Household feature lets a member share shipping and other benefits with a second adult, which effectively halves the cost. If someone under your roof already pays for Prime, you may not need to pay a dime.
And if you’re deciding whether Prime is worth keeping year-round, do the math. The Penny Hoarder figures shipping without Prime typically runs $5 to $13 an order.
At $5, you’d need about 28 orders a year — roughly two or three a month — just to break even on $139. Fewer than that, and the membership is costing you, not saving you.
4. Turn Auto-Buy off unless you’ve set a hard price and a hard list — and know how to cancel fast
Here’s my rule for Auto-Buy: It stays off by default.
The only exception is for an item that’s already on your list, at a target price you took from the price history, with a number you’ve already decided you’re happy paying. All conditions, not one. A target price on an impulse item is just a slower impulse.
If you do turn it on, do two things before Oct. 6. First, know exactly which items have it enabled and check that list daily during the sale. Second, find the cancel button on your orders page and practice using it.
Amazon’s announcement says nothing about a window to undo an Auto-Buy purchase, so assume you’ll need to move quickly once you get the notification.
5. Remember Target and Walmart will be running sales the same week
Amazon’s October sale hasn’t happened in a vacuum in years. Walmart and Target have historically scheduled their own fall deal events right on top of it.
Neither has announced dates for 2026 as I write this, so don’t take anything as certain — but I’d be surprised if they sat this one out.
What that means for you: Almost nothing on Oct. 6-7 is a one-shot deal. If Amazon’s price on your list item doesn’t hit your target, there’s a fair chance a competitor’s will the same week. Or Amazon’s Black Friday sale will in late November.
The bottom line
I’ve spent 35-plus years watching retailers engineer the impulse buy. First it was the candy rack at checkout. Then it was one-click ordering. Now it’s a button that clicks itself while you sleep.
Your defense hasn’t changed in all that time, either. Decide what you need and what it’s worth before someone else decides for you. Do that, and Prime Big Deal Days can save you real money. Skip it, and Amazon’s new button will be happy to do your shopping for you.
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