Another Prime Day is tomorrow. Amazon's Prime Big Deal Days event, sometimes called October Prime Day, commences on Oct. 8 and 9, and we're scouring the internet for the best savings so you don't have to. 

Whether you're looking to score on tablets, security cameras, kitchen appliances, random odds and ends, or are just bored and want to shop around for nothing in particular, I've rounded up some notable deals you can purchase today for under $100. 

In selecting these 40+ deals, I considered which products were worth your while, based on the customer reviews, the substantiality of the deal itself, and whether or not the product was something ZDNET has tested for itself. Below you'll find deals on security cameras, headphones and earbuds, and even some home stuff

See at Amazon

Best Amazon October Prime Day deals under $100

  • Current price: $70
  • Original price: $90

Ditch the coffee pot and the multiple servings that you never end up drinking and buy this single serving Keurig instead. The K-Express comes in four colors: mint, red, black, and white, and could be a dorm room essential for the tired-but-wired college student or a beverage cart must-have for your studio apartment. 

  • Current price: $16
  • Original price: $24

Upgrade your Halloween decoration game this year with these purple and orange decorative lights you can hang outdoors. They're solar-powered, so you don't have to worry about plugging them in or recharging. Customize the lights' flashing frequency, timing, and more. The bulbs are waterproof and apparently shatterproof, but we haven't tested them so we can't confirm. 

  • Current price: $25
  • Original price: $40

Earbuds can get crazy expensive, and before you know it you're spending over $100 for a pair of buds you may forget on a bus or damage with water in the washing machine. If you are a chronic misplacer of earbuds, you probably don't want to spend lots on a pair that will go missing in a few months. Then again, why settle for middling, cheap audio quality in the meantime? These Soundcore earbuds satisfy both ends of the price-quality spectrum, with sound that Amazon reviewers enjoy and a price that won't make anybody mad. 

Prime Day home deals under $100 

Levoit/ZDNET

Best Prime Day kitchen appliance deals under $100 

Ninja/ZDNET

Best Prime Day security camera deals under $100

Ring/ZDNET

Best Prime Day tablet deals under $100

Amazon/ZDNET

Best Prime Day streaming deals under $100

Insignia/ZDNET

Best Prime Day headphone and speaker deals under $100

Marshall/ZDNET

Best Prime Day tech accessory deals under $100

Best Prime Day wellness tech deals under $100

Amazon/ZDNET

FAQs

When is Amazon's October Prime Day 2024? 

Amazon's October Prime Day is on Oct. 8 and 9, though some products will be discounted a few days before and after the deals event. 

Are products really cheaper on Prime Day? 

The short answer is: it depends. The long answer is that brands decide at what price they'd like to discount their products at, based on demand and availability. Sometimes, they will inflate the price ahead of Prime Day to make discounts look more attractive than they actually are. But other times, you will see products discounted well below their original price. When we see a good or rare deal on a loved piece of tech, whether that's AirPods or a TV, we try to call it out through our Prime Day coverage. We'll also do our best to tell you whether something is worth your money based on our own experience with the product and customer reviews. 

How did we choose these October Prime Day deals?

ZDNET only writes about deals we want to buy -- devices and products we desire, need, or would recommend. Our experts looked for deals that were at least 20% off (or are hardly ever on sale), using established price comparison tools and trackers to determine whether the deal is actually on sale and how frequently it drops. 

We also looked over customer reviews to find out what matters to real people who already own and use the deals we're recommending. Our recommendations may also be based on our own testing -- in addition to extensive research and comparison shopping. The goal is to deliver the most accurate advice to help you shop smarter. 

What are the best October Prime Day deals? 

ZDNET's experts are searching through Prime Day sales to find the best discounts by category. These are the best deals so far:

You can also find the best October Prime Day deals by price:

And the best deals from other retailers this week: