The 23+ best Prime Day deals under $50 from Crest, Owala and more

NBC News

08-07-2025

Amazon Prime Day is here, offering discounts on plenty of items under $50 during the four-day sale, exclusive to Prime members. You can also find deals on tech, home and kitchen, beauty items and more.
I frequently cover shopping events like Prime Day, Black Friday and Cyber Monday as an editor for NBC Select, so I know how to find deals that are actually worth buying. I spent weeks combing through thousands of discounts to find the best Prime Day deals under $50 — each one I recommend below is highly rated, at least 20% off and at its lowest price in at least three months. I'll frequently update this list throughout Prime Day.
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Best Prime Day deals under $50
One of our favorite teeth-whitening strips, these are coated in a layer of hydrogen peroxide to remove stains. Plus, they're flexible and easily mold to your teeth. There are 22 treatments in the box: 20 are 45-minute standard treatments and two are 60-minute express treatments.
You'll find an Owala reusable water bottle and tumbler on each of our editors' desks, both of which are on sale for Prime Day. 'I love the look and shape of my Owala tumbler — I prefer a side handle over one on top. The handle is incredibly comfortable and the bottle itself doesn't feel super heavy and doesn't make a ton of noise when I accidentally hit it against something,' says NBC Select commerce editor Cory Fernandez. 'It's also easy to clean, including the lid and straw. Plus, it keeps my iced drinks cold all day when I'm at work.' According to the brand, the bottle's dual-wall insulation helps keep drinks cold for up to 24 hours at a time.
The Echo Dot is a speaker, temperature sensor, home theater system and Wi-Fi extender all in one. The device can also stream music, podcasts and audiobooks, and it's compatible with Amazon Alexa, so you can set timers, get weather updates and more using voice commands.
This anti-frizz spray helps minimize heat damage and leaves hair looking glossy and smooth after styling, according to the brand. I use this product regularly before styling my hair because it doesn't weigh down my hair and smells great. The brand recommends evenly distributing the product through damp hair and blow drying afterward.
Make smoothies and juices from anywhere using this portable blender, which holds up to 18 ounces of your favorite blends. The base is rechargeable and you can sip from the lid, so you don't have to pour it in a separate container. It's also top-rack dishwasher-safe and fits in a car cup holder.
This battery-powered Ring camera lets you see, hear and talk to visitors directly from your smartphone or tablet. It has motion detection, color night vision and two-way talk, plus you can view a live feed and change your settings in the Ring app. The camera can stand on its own, or you can mount it on your wall.
This tinted sunscreen is one of our favorites for darker skin tones. It has iron oxides, which are mineral pigments that create tint, and titanium dioxide to protect your skin from the sun's harsh rays, according to the brand. It also has vitamin E to keep your skin hydrated and dimethicone, an emollient that helps your skin retain water.
This personal filter gets rid of parasites, microplastics and other impurities from your water as you sip through the mouthpiece. The slim, lightweight shape is also travel-friendly for outdoor adventures like hikes and camping trips.
You can mix this collagen powder into both hot and cold beverages, including water, smoothies, coffee and tea. It has collagen sourced from grass-fed, pasture-raised bovine, vitamin C and hyaluronic acid to keep bones, joints, nails and hair healthy, according to the brand.
This portable Bluetooth speaker is a must for summer — you can throw it in your backpack or tote bag for your trips to the beach or to sit by the pool. It's water-resistant and has up to five hours of playtime on a single charge.
If you have fine hair, making sure it doesn't fall flat can be a daily struggle. This shampoo has a blend of biotin and collagen, which helps hair look thicker and boosts volume. It also has fragrance notes of coconut, jasmine and lemon, so your hair will smell good hours after your shower.
Best Prime Day sales under $50
Here are the best Prime Day sales under $50 to know about. Keep in mind, not every item from a brand is discounted as described below.
Up to 30% off all Olaplex hair care
Up to 50% off Philips Sonicare electric toothbrushes
Up to 42% off Brita water filters
Up to 60% off Furbo pet cameras
Best sales under $50 at other retailers
Target: Up to 40% off sitewide during the Target Circle Week sale through July 12
Walmart: Save on hundreds of items, including tech, home, outdoor items and school supplies, during the Walmart Deals sale through July 13
Home Depot: Up to 40% off grills, patio furniture and more through July 9
Lowe's: Up to 40% off select major appliances through July 9
Kohl's: Up to 20% off sitewide using code UGET20
Bloomingdale's: Up to 70% off during its July Home sale through July 8
Brooklinen: Up to 20% off sitewide
Bluemercury: Up to 25% off summer essentials through July 8
Under Armour: Extra 50% off with code EXTRA50 through July 9
How I found the best Prime Day deals under $50
All of my recommendations above are based on NBC Select's previous coverage and reporting. I also included products the NBC Select staff tested, including Wellness Award, Travel Award, Pet Award, Bed & Bath Award and Giftable Tech Award winners. I ran each deal through price trackers like CamelCamelCamel to ensure products are at their lowest price in at least three months. All the products I recommend are highly rated with at least a 4.0-star average rating from hundreds of reviews.
Why trust NBC Select?
I'm an updates editor for NBC Select who has covered deals and sales for over four years. To round up the best discounts under $50 during Prime Day, I found highly rated products at their lowest price in at least three months.