How do you know an Amazon deal is really, really good? If it's at the lowest price it's ever been.
Here's why we use lowest price ever as our gold standard for finding good deals during major sales like Prime Big Deal Days (Oct. 7 - 8):
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Prices fluctuate constantly and retailers throw a lot of sales. So simply knowing a product is "on sale" or "half off" isn't enough, if that product is frequently on sale or half off.
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The "before" price can't be trusted. The "before" price you see on a site is often just the manufacturer's suggested retail price (MSRP) or a regular price that the item rarely — if ever — actually sold for. This makes discounts appear more dramatic, enabling stores to advertise deals like "75% off" when the sale price may only be 10% below what the product typically costs.
That's why we use our own price data as well as price-tracking tools like CamelCamelCamel and Keepa to help you find Prime deals on popular products that are the best we've ever seen.
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What's on this page:
- Shark HD430 FlexStyle Air Styling & Drying System
- Keurig K-Mini Single Serve
- Barbie DreamHouse
- Dyson V8 Plus Cordless Vacuum
- Shark AI Ultra Voice Control Robot Vacuum
- Apple AirPods Gen. 4
- Ninja Slushi With RapidChill Technology
- JBL Go 3 Portable Mini Bluetooth Speaker
- Revlon One Step Volumizer Styling Tool
- Apple AirTags, 4 ct
- Kindle Paperwhite 16GB (2024 Model)
- Amazon Basics 2-Ply Paper Towels, 12 ct
Prime Big Deal Day Products Hitting Their Lowest Prices Ever
Shark HD430 FlexStyle Air Styling & Drying System, $199.99
$20 cheaper than previous lowest price, spotted December 2024
This deal on the Shark FlexStyle is sure to go fast, given it's the lowest price we've seen on it ever, as well as a 43% discount off full price. The next-lowest price we've ever seen on this product was last Black Friday ($219.99)
Keurig K-Mini Single Serve, $42
$7.99 cheaper than previous lowest price ever, spotted Black Friday 2024
The Keurig K-Mini Single Serve K-Cup Pod Coffee Maker is at the lowest price we've seen (58% off). And once you buy it, it's one of those products that practically pays for itself if it helps you break your cafe habit.
Barbie DreamHouse, $124.99
Tied with previous lowest price ever, spotted May 2025
This Barbie DreamHouse 75-piece set is rarely discounted. In fact, the last time it hit this price was May 2025 and, before that, Black Friday. Consider this a chance to get a hot holiday toy that rarely goes this low.
Dyson V8 Plus Cordless Vacuum, $299.99
Tied with previous lowest price ever, spotted Black Friday 2024
This is the lowest price of the year for the Dyson V8 Plus Cordless and one of the best vacuum deals we've seen this Prime Big Deal Days. It's also $50 lower than the Prime Day price.
Shark AI Ultra Voice Control Robot Vacuum, $249.99
$48 cheaper than previous lowest price ever, spotted Black Friday 2024
The discount on the Shark AI Ultra Voice Control Robot Vacuum beats the next-lowest price we've seen by almost $50. You're also getting a feature-heavy robotic vacuum for under $250.
Apple AirPods Gen. 4, $89
$0.99 lower than previous lowest price ever, spotted Prime Day 2025
Apple AirPods Gen. 4 hit a new low last Prime Day at $89.99, and they're hitting the same level for Prime Big Deal Days. Before that, the lowest they'd gotten was $99.
Ninja Slushi With RapidChill Technology, $299
$0.99 cheaper than pervious lowest price ever, spotted Black Friday 2024
The Ninja Slushi with RapidChill technology hasn't been discounted much at all in 2025. In fact, the last time we saw it anywhere near this price was last Black Friday, and it wasn't marked down for Prime Day. We did see a final price of $289 at Target earlier this year, but that required using a gift-card-with-purchase offer. So a $299 price tag is about as good as it gets.
JBL Go 3 Portable Mini Bluetooth Speaker, $27.95
$1.48 cheaper than previous lowest price ever, spotted Prime Day 2025
The JBL Go 3 boasts 51K reviews and a 5-star rating on Amazon. And thanks to this Prime Big Deal Days discount, it's also at its lowest price ever.
Revlon One Step Volumizer Styling Tool, $27.50
Tied with previous lowest price ever, spotted Prime Day 2025
This price on the Revlon One Step Volumizer Styling Tool beats Black Friday's price and Prime Day's price (even if just by a hair). We saw it hit $27.50 once earlier this year, but it's largely been $29 or above for all of 2025, so you can consider the Prime Big Deal Days price to be a rare one.
Apple AirTags, 4 ct, $64.99
Tied with previous lowest price ever, spotted Prime Day 2025
This is the lowest price we've seen on AirTags (and gets you a price of $16.25 per AirTag) if you buy a pack of four. We also saw this low price during Prime Day, but we haven't seen them go lower until now.
Kindle Paperwhite 16GB (2024 Model), $124.99
Tied with previous lowest price ever, spotted Prime Day 2025
This Kindle Paperwhite model hasn't been discounted that often in 2025. We saw it dip to $134.99 in February and to $124.99 for Prime Day, but it's been stuck at its full price of $159.99 since then. In other words, this Prime Big Deal Days price is a good deal and a rare discount.
Amazon Basics 2-Ply Paper Towels, 12 ct, $19.43
Tied with lowest price ever, spotted Black Friday 2024
Sometimes, a deal on an essential you're always running out of is more exciting than a deal on a big-ticket tech item. At just $0.02 per square foot, this 12-pack of Amazon Basics paper towels is at a stock-up price.
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