Black Friday vs Cyber Monday vs Prime Big Deal Days 2026: When Should You Buy?

By the WhatNotSell team · Updated October 3, 2026Price ranges in this guide are typical prices as of the date above and change often. The live prices on this page are current.

Short answer: don't pick a day, pick a price. Decide what the item is worth to you, set a price alert, and buy whenever it actually drops there, whether that's October Prime Day, Black Friday, Cyber Monday or a random Tuesday. As a rule of thumb, Prime Big Deal Days is best for Amazon's own devices, Black Friday for TVs, appliances and big-box doorbusters, and Cyber Monday for laptops, tech and sitewide online codes.

2026 Sale Dates

Prime Big Deal Days starts at 12:01 a.m. PT on October 6, and most of its deals are for Prime members only. Black Friday pricing at big retailers usually starts well before the day itself, often in early or mid-November.

What Our Data Says About Big Sale Events

The headline discounts during big sales are real for some products. But for most products, the price doesn't move at all.

WhatNotSell records prices from dozens of retailers every day. We looked at 1,173 products from non-Amazon stores (from our Awin, CJ and Impact retailer feeds) that we tracked both in the week before Amazon's summer Prime Day (June 16–22, 2026) and during it (June 23–26):

• 94% didn't change price at all during Prime Day week.
• Only 5% got cheaper, and only 1.2% dropped by 10% or more. The typical drop was about 7%.
• Of the products that did drop, 75% were back at or above their earlier price within a week.

So "competing sales" at other stores during a big event are mostly banners, not price cuts. The products that do drop often go right back up, which is why a price alert works better than trying to be online on the right day.

About this data: it covers products still listed on WhatNotSell today, from retailers whose feeds we tracked in June 2026. It doesn't include Amazon itself (our Amazon price history starts July 1). It's one event, so treat it as a snapshot, not a rule. We'll update this guide with Prime Big Deal Days and Black Friday data as it comes in.

Prime Big Deal Days: Best For

• Amazon devices: Echo, Kindle, Fire TV and Ring usually hit their lowest prices of the year at Prime events.
• Products sold by Amazon itself, especially household basics and things you'd buy anyway.
• Early holiday gifts, if the price is genuinely at its low.

Watch out for: third-party sellers with inflated "list prices." Check the Amazon price history with a tool like CamelCamelCamel or Keepa before you buy.

Black Friday: Best For

• TVs, especially big-screen models from mainstream brands
• Major appliances and kitchen appliances (air fryers, stand mixers, coffee makers)
• Store doorbusters at Best Buy, Walmart and Target
• Video game consoles and bundles

Watch out for: "Black Friday edition" models made for the sale with cheaper parts. Check that the model number matches the one reviewers tested.

Cyber Monday: Best For

• Laptops, tablets and computer accessories
• Sitewide online codes at fashion, beauty and smaller online stores
• Software, subscriptions and digital services
• Anything you missed on Black Friday, since many Black Friday prices carry through the weekend

Watch out for: sitewide "up to 70% off" claims. In our data, only about 5% of genuine discounts reach 70%. See how to spot a fake Black Friday deal for what a normal discount looks like in each category.

How to Actually Get the Best Price

1. Make a short list now. Decide what you're buying before the sales start, so the banners don't decide for you.
2. Check the real price history of each item. If it has sat at the "sale" price for weeks, that's just the price.
3. Set a price alert at a target based on that history, not on the "was" price. WhatNotSell, Google Shopping and CamelCamelCamel all have free alerts.
4. Buy when it drops, whatever day it is, and keep the receipt. Some retailers adjust the price if it drops again shortly after you buy, so check the store's price-match policy.
5. Use AI carefully. Assistants and AI shopping agents are handy for comparing options, but they repeat stores' "was" prices without checking them. See our safe AI shopping tips.

Frequently Asked Questions

Is Black Friday or Cyber Monday better?

It depends on the product. Black Friday is usually best for TVs, appliances and in-store doorbusters. Cyber Monday is usually best for laptops, tech accessories and sitewide online codes. For any specific item, the price history matters more than the day.

Is October Prime Day better than Black Friday?

For Amazon's own devices, it's often just as good. For most other products, prices at Prime Big Deal Days and Black Friday are similar, and many items don't drop at either. Set a price alert rather than waiting for a particular event.

Do other stores lower prices during Prime Day?

Mostly not. In our tracking of 1,173 products from other retailers around the June 2026 Prime Day, 94% didn't change price, and only 1.2% dropped by 10% or more.

When does Black Friday 2026 start?

The day itself is Friday, November 27, 2026, but many retailers start Black Friday pricing in early to mid-November.

When is Cyber Monday 2026?

Monday, November 30, 2026.

The Bottom Line

The calendar tells you when stores will advertise. It doesn't tell you when your item will actually be cheaper. Pick your price, set an alert, and buy when it drops for real.

WhatNotSell only shows a discount when it's backed by a real original price. Browse today's verified deals or check category norms on the Deal Index.