The best Amazon October Prime Day deals under $100

Amazon’s fall Prime Day — called Prime Big Deal Days — is already halfway through, and if you’re looking to buy your favorite items for less, the retailer is currently offering discounts on plenty of products under $100. Prime Big Deal Days is a 48-hour sale exclusive to Prime members, and you can find deals on home and kitchen, fitness, tech items and more.

SKIP AHEAD Amazon Prime Day deals under $100 | Amazon Prime Day sales under $100 | Best sales at other retailers

To help you make the most of Prime Day Big Deal Days and identify what’s actually worth buying, we compiled some of the best deals under $100 that we think you should know about. We’ll continue updating our list with new savings opportunities throughout the event. We also compiled a list of Prime Day bestsellers so far, so you can see what other Select readers are shopping for.

Best Prime Day deals under $100

Below, we’re sharing the best Prime Day deals under $100. All of our recommendations are based on our previous coverage and reporting. We also included a handful of products we’ve tried ourselves, including Select Wellness Award, Pet Award and Bed & Bath Award winners. To ensure the quality of each deal, we’re running deals through price trackers like CamelCamelCamel — each product is either at its lowest price ever or its lowest price in at least three months.

AeroGarden Harvest

4.6-star average rating from 20,116 reviews on Amazon

Lowest price ever

The AeroGarden Harvest can help you grow fresh herbs and vegetables at home, even without direct sunlight, according to the brand. The hydroponic indoor gardening system comes with LED grow lights that automatically turn on and off via a customizable timer. It can grow six different plants at once up to 12 inches tall, according to the brand. It also has a digital display that automatically reminds you when to add water and plant food to help your herbs grow. The included seed pod kit includes Genovese basil, curly parsley, dill, thyme, Thai basil and mint.

Waterpik Aquarius Water Flosser

4.6-star average rating from 123,422 reviews on Amazon

This ADA-accepted water flosser comes with 10 pressure settings and a 22-ounce, dishwasher-safe water reservoir. You can use one of the seven included tips (you can buy additional replacements online) to clean different areas of your mouth and teeth, according to the brand. The water flosser also has a one-minute timer with a 30-second pacer to help you brush the expert-recommended two minutes. It’s available in four colors, including white, gray, blue and black.

Casper Original Pillow 2-Pack

4.4-star average rating from 10,477 reviews on Amazon

Lowest price ever

The Casper Original Pillow is a Select Best of Bed and Bath Awards winner due to its breathable percale weave and 100% cotton cover, which ensures that you stay cool throughout the night, according to the brand. Suited for any type of sleeper, the pillow has two machine-washable layers, including an inner core with shorter fibers and an outer layer with soft, clump-resisting fibers that Select staff described as “a pillow-in-a-pillow.” This set comes with two Casper pillows in your choice of a standard or king size.

Crest 3D Whitestrips

4.6-star average rating from 80,909 reviews on Amazon

The Crest 3D Whitestrips are one of our favorite at-home teeth-whitening products and includes 20 treatments that brighten your teeth over time and keep them white for at least 12 months, according to the brand. You can use the strips once a day for 30 minutes, and the kit also comes with two 1-hour express treatments you can use when you’ve got a bit more time, according to Crest.

Oral-B Pro 1000 Rechargeable Electric Toothbrush

4.6-star average rating from 130,112 reviews on Amazon

The Oral-B Pro 1000 is one of our favorite budget-friendly electric toothbrushes. It has an oscillating brush head that breaks up plaque, and a pressure sensor that lets you know if you’re brushing too hard, according to the brand. The brush also has a built-in 30-second timer, so you can keep track of whether you’re brushing for the expert-recommended 2 minutes.

AncestryDNA Genetic Test Kit

4.7-star average rating from 81,353 reviews on Amazon

Trace your ancestral origins, discover distant relatives and more by using this at-home DNA test kit, according to the brand. You’ll need to send a saliva sample to the AncestryDNA lab using the included prepaid package and typically, you’ll get results back in six to eight weeks, according to the company. 

Loop Quiet Ear Plugs

4.2-star average rating from 66,824 reviews on Amazon

These Loop silicone earplugs are a favorite among our staff and a Select Best of Wellness Award winner because they can effectively reduce outside noise, even in loud street-facing apartments. They also come with eight different sized ear tips to provide a comfortable fit. The earplugs are also washable and reusable, according to the brand.

Differin Acne Treatment Gel

4.4-star average rating from 7,292 reviews on Amazon

Lowest price ever

Differin Gel won the Select Best of Wellness award for the best overall acne treatment our staff tried. An expert-recommended treatment for acne-prone skin, it has 0.1% adapalene gel, which is a type of over-the-counter retinoid that can treat mild to moderate acne and blackheads. You can apply a thin layer of the gel to the affected areas after cleansing and before moisturizing, according to the brand.

Tile Mate 2-Pack

4.5-star average rating from 32,814 reviews on Amazon

Lowest price ever

The Tile Mate can help you keep track of important items, like your wallet, keys or luggage, using Bluetooth and the companion app. When it’s within the 250-foot Bluetooth range, you can ring your Tile to help you locate your missing items. If you’re outside that range, the app shows you the Tile’s most recent location. You can also double press the button on your Tile to make your phone ring, even when it’s on silent. The Tile Mate has a battery life of up to three years, and it works with Amazon Alexa, Google and Siri.

Blissy Silk Pillowcase

4.5-star average rating from 1,198 reviews on Amazon

Lowest price ever

This Blissy silk pillowcase is a Select staff favorite because it’s designed to be breathable, cooling and gentle on the skin. The soft silk fabric is great for sensitive skin and helps reduce redness and irritation in the morning, according to the brand. It comes in standard, queen and king sizes and is available in more than 40 colors, including pink, silver and black.

Keurig K-Elite Coffee Maker

4.7-star average rating from 52,882 reviews on Amazon

Lowest price ever

Keurig makes some of our favorite single-serve coffee makers, and the brand’s K-Elite model can brew five different cup sizes, ranging from 4 to 12 ounces. It comes with a 75-ounce water reservoir, which allows you to brew up to 8 cups of coffee before needing to refill it, according to the brand. The coffee maker is compatible with the brand’s K-cups, and it can accommodate travel mugs up to 7.2 inches tall when you remove the drip tray, according to Keurig.

Petcube Cam

4.3-star average rating from 18,021 reviews on Amazon

You can check on your pet when you’re away from home using this mini camera. It’s compatible with Amazon Alexa and equipped with two-way audio, so you can see, talk to and hear your pet throughout the day. It has a wide 110-degree angle view, 8x zoom and night vision, according to the brand.

Levoit Core 300 Air Purifier

4.7-star average rating from 82,891 reviews on Amazon

One of our favorite affordable air purifiers, this Levoit option uses a pre-filter, carbon filter and HEPA filter to remove smoke, dust, mold and other contaminants from indoor air. It can clear the air in a 219-square-foot room in 12 minutes, according to the brand. The purifier comes with four sleep timer settings, so it can automatically shut off anywhere from two to eight hours.

Beats Studio Buds

4.4-star average rating from 76,717 reviews on Amazon

These earbuds offer two listening modes, including active noise cancellation and a transparency option to help you hear outside noises. You can listen for up to eight hours on a single charge, and they have on-ear controls to easily play music, answer calls and more. The earbuds are also sweat- and water-resistant, so you can safely use them while you’re working out, according to the brand.

Best Friends by Sheri The Original Calming Donut

4.6-star average rating from 69,730 reviews on Amazon

One of our favorite dog beds, this cozy circular bed is covered in vegan shag fur and has deep crevices so your pet can burrow, according to the brand. It’s available in five sizes, with the smallest size accommodating pets weighing up to 7 pounds and the largest size for pets up to 150 pounds, according to Best Friends by Sheri. It also comes in over a dozen colors, including oyster (white), dark chocolate (dark brown) and cotton candy (pink).

Nicetown Blackout Curtains Panels

4.7-star average rating from 110,056 reviews on Amazon

These drapes can block up to 99% of light and UV rays from the sun, according to the brand. An expert-recommended blackout curtain for the bedroom, they’re available in 24 fade-resistant colors and they come with two panels per package to accommodate different types of windows and styles.

Anker Soundcore 2 Portable Bluetooth Speaker

4.6-star average rating from 112,055 reviews on Amazon

Lowest price ever

This Select staff-favorite bluetooth speaker offers up to 24 hours of playtime on a single charge. It’s water-resistant and extremely portable, weighing in at just under a pound. The speaker also has physical touch controls on top so you play or pause your music and adjust the volume.

Ring Video Doorbell with Indoor Camera

4.6-star average rating from 174,508 reviews on Amazon

Lowest price ever

This bundle includes Ring’s Video Doorbell and the latest iteration of its indoor camera, which allows you to monitor your space using your phone, tablet or computer and get real-time notifications. The Wi-Fi-equipped cameras pair with a companion app, so you can see, hear and speak to visitors. The devices are powered by a built-in rechargeable battery and work with Amazon Alexa voice assistant.

Google Nest Thermostat

4.2-star average rating from 12,721 reviews on Amazon

One of our favorite smart thermostats, the Google Nest thermostat has many energy-saving features, including both automated and manual temperature control through the Google home app. Google also will send you notifications, monthly energy usage reports and more.

Sony SRS-XB13 Portable Speaker

4.5-star average rating from 18,284 reviews on Amazon

Lowest price ever

This Sony portable Bluetooth speaker provides up to 16 hours of listening time on a single charge and comes with a built-in strap to help you take it on the go, according to the brand. It’s also water- and dust-resistant and it comes in five different colors, including coral pink and light blue.

LifeStraw Personal Water Filter

4.8-star average rating from 110,009 reviews on Amazon

This personal water filter can filter parasites, micro-plastics and impurities out of a water source as you sip through the top mouthpiece, making it a great accessory for camping and hiking. according to Lifestraw. You can purchase it in packs of two, three and five.

Best Prime Day sales under $100

Here are the best Amazon Prime Day sales under $100 that we think you should know about. Keep in mind, not every item from a brand is discounted as described below.

1. Up to 70% off AeroGarden indoor garden systems and kits
2. Up to 69% off Echo smart speakers and smart home bundles
3. Up to 60% off Blink smart home doorbells and cameras
4. Up to 60% off popular fiction books
5. Up to 61% off office products from Amazon Basics
6. Up to 54% off Fire TV streaming devices
7. Up to 52% off Keurig coffee brewers
8. Up to 50% off Crest Whitestrips & Oral-B electric toothbrushes
9. Up to 50% off Waterpik Oral Care
10. Up to 50% off Peloton Bike, Bike Plus, guide, accessories, and apparel
11. Up to 49% off hair tools from Revlon and Bed Head
12. Up to 49% off New Balance shoes and apparel
13. Up to 48% off Shark floor care and air purifiers
14. Up to 42% off Sony headphones, earbuds and portable speakers
15. Up to 40% off premium skin care from Laneige, Innisfree and more
16. Up to 32% off pet products from Amazon brands
17. Up to 31% off Ninja air fryers, blenders, cookware and more
18. Up to 30% off beauty products from Moroccanoil, La Roche Posay and more
19. Up to 25% off Casetify phone cases and accessories
20. Up to 25% off Braun electric razors, epilators and styler
21. Up to 20% off Ruggable
22. Up to 20% off Quip dental care
23. Up to 20% off Otterbox phone cases and accessories

Prime Day: Best sales under $100 at other retailers

1. Walmart: Up to 60% off electronics, kitchen appliances, outdoor items and more through Oct. 12
2. Kohl’s: Up to 60% off bedding, 40% off electronics, 30% off select toys and more during its Deal Dash event through Oct. 11
3. Macy’s: Up to 60% off clothing, shoes, bedding, kitchen essentials and more
4. Casper: Up to 50% off sitewide, up to 25% off mattresses and 25% off bundles through Oct. 24
5. Nordstrom: Up to 50% off shoes, clothing, beauty and more during its Limited Time sale through Oct. 10
6. Petco: Up to 50% off pet essentials
7. Sephora: Up to 50% off select hair care
8. REI: Up to 50% off snowsports gear
9. Buffy: Up to 40% off sheets, comforters, pillows and more
10. Chewy: Up to 40% off pet essentials
11. Solawave: Up to 40% off sitewide through Oct. 12
12. Sur La Table: Up to 35% off Le Creuset items
13. Brooklyn Bedding: Up to 30% off sitewide using code FLASH30 through Oct. 11
14. Cozy Earth: Up to 30% off sitewide and 35% off bundles using code PRIMEDAYS through Oct. 11
15. Umamicart: Up to 25% off pantry items using code BIGMEAL through Oct. 13
16. Love Your Melon: Up to 25% off sitewide through Oct.12
17. Skinstore: Up to 25% off sitewide using code FRIENDS through Oct. 11
18. Baublebar: Up to 20% off sitewide using code PRIMETIME through Oct. 11
19. Selfmade: Up to 20% off sitewide

Why trust Select?

Mili Godio is an updates editor for Select who has covered deals and sales for Prime Day, Black Friday, Cyber Monday or more since 2021. To round up the best Amazon Prime Day sales under $100, Godio found discounted products either at their lowest price ever or their lowest price in three months.

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