Ninja BlendBOSS 24-oz Blender in Glacier Blue (DB300BL2): Specs, Reviews, and Downsides
A single-serve blender with a 1,200-peak-watt base and a tumbler that doubles as the blending cup. Here is what the specs, professional tests, and Walmart owners say.
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Disclosure: This page contains affiliate links. If you buy through them, we may earn a commission at no extra cost to you. We did not lab-test this unit ourselves. Everything below comes from the Walmart listing, published reviews, and customer ratings, all checked on September 19, 2026.
The Ninja BlendBOSS DB300BL2 is a single-serve blender built around one cup. You blend in the 24-oz tumbler, swap the blade assembly for the flip cap, and carry the drink with you. This Glacier Blue version has a 1,200-peak-watt base and two Auto-iQ presets, Smoothie and Ice Crush. Walmart shows a 4.6-star average across 497 ratings.
It has real drawbacks. It’s loud, it comes with one cup, and a few owners report water or residue reaching the hollow handle. Below you’ll find the specs from the listing, what professional reviewers found on the closely related 26-oz model, and what Walmart shoppers report, so you can decide whether it fits your kitchen.
Ninja BlendBOSS DB300BL2 specs at a glance
| Model | DB300BL2, Glacier Blue |
|---|---|
| Cup | 24-oz tumbler with a contoured, cupholder-friendly handle |
| Motor base | 1,200 peak watts |
| Blades | Stainless-steel CrushBlade assembly |
| Programs | Two Auto-iQ presets: Smoothie and Ice Crush |
| Lid | Leakproof flip cap with an easy-sip chug spout. Leakproof only when locked. |
| Cleaning | Listing states dishwasher-safe, BPA-free parts |
| Walmart rating | 4.6 out of 5, 497 ratings, 318 written reviews |
How the one-cup design works
Most personal blenders make you blend in one container and drink from another. The BlendBOSS skips that step. You add ingredients to the tumbler, attach the CrushBlade assembly, twist the cup onto the motor base, and pick a preset. When the drink is done, you remove the blade assembly and lock on the flip cap. There’s no pitcher to pour from and no second vessel to rinse.
The two Auto-iQ presets combine pulses, blends, and pauses. SharkNinja’s support FAQ says those pauses let ingredients settle back toward the blades between bursts. If food keeps sticking, it suggests starting with about two tablespoons to a quarter cup of extra liquid.
What professional reviewers found (on the 26-oz model)
Most published testing covers the 26-oz DB301 and DB351, which use the same 1,200-peak-watt platform as this 24-oz version. We found no published lab test of the DB300 itself, so read the findings below as a guide to the platform, not a guarantee for this exact unit.
Tom’s Guide gave the BlendBOSS an Editor’s Choice badge in February 2026. Its tester made a frozen berry, oat, milk, and honey smoothie that came out thick and cold, with only slight grit from seeds and oats. A chocolate protein shake took just under a minute and turned out creamy. Hummus came out smooth with no mid-cycle stir, which the reviewer said other personal blenders had needed.
The same reviewer measured about 92 dB on a phone sound-meter app while the blender crushed frozen ingredients, a level the review compares to a Vitamix Ascent X2. A phone app isn’t a calibrated meter, but the direction is clear: expect a loud few seconds.
Trusted Reviews also found it very powerful for ultra-smooth drinks, and loud. Homes & Gardens kept it for a summer morning routine but took half a star off for the noise and because the single tumbler can feel heavy to some users. TechRadar’s reviewer described its smoothies as among the silkiest they had ever had.
What Walmart shoppers say
- 5 stars81% (402)
- 4 stars11% (55)
- 3 stars3% (15)
- 2 stars2% (8)
- 1 star3% (17)
The DB300 listings show a 4.6-star average from 497 ratings. Five-star ratings account for 81%, and 3% are one-star. Walmart’s AI-generated review summary lists easy controls, fast ice crushing, smooth frozen-fruit blends, and a cup that fits car cupholders as the common positives. Its one common negative is noise.
The written reviews add detail. Owners describe blending frozen fruit, spinach and other greens, nut butter, protein powder, and even salsa. Among the ten reviews on the first page we read, three mention water or smoothie residue reaching the hollow handle, and one reported mold after two washes. SharkNinja replied to the two lower-rated reviews and pointed those owners to customer support. Another reviewer called replacement cups expensive.
Two caveats apply. The ratings are shared across the color listings, and some reviews on the page were collected through promotions or come from SharkNinja’s own site. Treat the average as a rough guide, and read the critical reviews for problems the average hides.
Downsides to weigh before you buy
- It’s loud. Tom’s Guide measured about 92 dB on the 26-oz model, and Walmart’s review summary names noise as the main complaint. That matters if you blend before anyone else is awake.
- It comes with one cup. Tom’s Guide says the BlendBOSS ships with a single tumbler. It noted that extra tumblers cost about $39 and were out of stock in February 2026, and a Walmart reviewer called replacement cups expensive. Confirm the box contents and cup availability on the listing.
- The hollow handle can hold moisture. Three of the ten reviews we read mention water or residue in the handle, and one reported mold. If this worries you, weigh those reviews before you order.
- Lock the cap before you pack it. The listing says the flip cap is leakproof only in the locked position.
DB300 vs DB301 vs DB351: which BlendBOSS should you buy?
Walmart sells several BlendBOSS versions with near-identical names. Check the model number, because the differences change what you get.
| DB300 (this listing) | DB301 | DB351 | |
|---|---|---|---|
| Cup size | 24 oz | 26 oz | 26 oz |
| Auto-iQ programs | 2: Smoothie, Ice Crush | 3: Smoothie, Ice Crush, Blend | 3: Smoothie, Ice Crush, Blend |
| Lid | Leakproof flip cap with chug spout | Leakproof lid with chug spout | Chug lid plus detachable straw |
| Motor base | 1,200 peak watts | 1,200 peak watts | 1,200 peak watts |
If you want the third Blend program or a straw lid, look at the 26-oz models. If you don’t need either, the DB300 uses the same 1,200-peak-watt base. At review time in February 2026, Tom’s Guide listed the 26-oz model’s MSRP at $129.99. On September 19, 2026, Walmart listed the Sage Moss DB300 at $99.00. Prices and stock change often, so confirm the Glacier Blue price on the listing.
The DB300 comes in more colors than Glacier Blue
Each color is a separate Walmart listing. Glacier Blue, on the left, is the version this guide covers.
A Mint Cotton Candy version (DB300MT) is also listed.
Cleaning and care
The listing says the parts are dishwasher safe and BPA free, and Tom’s Guide reports that the cup, lid, and straw of the 26-oz model can go in the dishwasher. Check the owner’s guide for rack placement.
For a quick clean between uses, SharkNinja’s FAQ says to rinse the cup and blade assembly, fill the cup with warm water and a small drop of soap up to the 6-oz mark, attach it to the base, run a program, then rinse. The rubber sleeve on the cup comes off, which lets you clean the gap between the sleeve and the bottom of the cup.
Given the handle reports above, it’s worth drying the cup fully after washing. One Walmart reviewer who found water in the handle says they now wash the cup right after use instead of letting it soak.
Who should buy it, and who should skip it
A good fit if you
- make one smoothie, shake, or frozen drink at a time
- want to blend and carry from the same cup
- have limited counter space
- can live with a loud few seconds
Look elsewhere if you
- need two cups in the box (the Ninja Nutri Pro BN400 lists 18-oz and 24-oz cups)
- blend early in a shared home or thin-walled apartment
- want the Blend preset or a straw lid (see the 26-oz DB301 and DB351)
- make batches for a family
Frequently asked questions
Is the Ninja BlendBOSS DB300BL2 24 oz or 26 oz?
The web address of the Walmart page still says 26oz, but the current listing title says 24-Oz, and the model is DB300BL2. The DB301 and DB351 models are 26 oz. Confirm the capacity in the title and the model number before you order.
Can the Ninja BlendBOSS crush ice?
Yes. The listing says the 1,200-peak-watt base crushes ice to snow, and Ice Crush is one of its two presets. Tom’s Guide’s tester crushed ice and frozen fruit with the 26-oz model, and ice crushing shows up as a review topic on Walmart with 44 mentions.
Is the Ninja BlendBOSS dishwasher safe?
The listing says its parts are dishwasher safe. Tom’s Guide reports that the cup, lid, and straw of the 26-oz model went in the dishwasher. Check the owner’s guide for rack placement.
How loud is the Ninja BlendBOSS?
Loud. Tom’s Guide measured about 92 dB with a phone sound-meter app while crushing frozen ingredients on the 26-oz model. Trusted Reviews and Homes & Gardens also flagged noise, as does Walmart’s review summary. Cycles are short: a protein shake took just under a minute in Tom’s Guide’s test.
Can I buy extra cups?
SharkNinja sold extra tumblers separately. Tom’s Guide listed them at about $39 in February 2026, though they were out of stock at the time. Availability may have changed, and compatibility between the 24-oz DB300 and the 26-oz models is not confirmed here, so check the listing for the DB300 cup specifically.
The bottom line
The BlendBOSS earns its strong ratings on the basics. It crushes ice, blends frozen fruit smooth, and you drink from the same cup you blended in. The costs are noise, a single cup, and some owner reports about the hollow handle. If you make one drink at a time and can live with the volume, the Glacier Blue DB300BL2 is a good match. If you want a third preset, a straw lid, or more than one cup, compare the 26-oz DB301 and DB351 or a multi-cup personal blender before you buy.
Ninja BlendBOSS 24-oz, Glacier Blue (DB300BL2)
Prices, colors, and stock change often. Last checked September 19, 2026.
Sources
- Walmart, Ninja BlendBOSS 24-Oz DB300BL2 Glacier Blue listing and customer reviews
- Walmart, Sage Moss DB300GN1 and Strawberry Lemonade DB300PK listings, for the DB300 feature list and price
- Tom’s Guide, Ninja BlendBoss review, February 2026
- Trusted Reviews, Ninja BlendBoss review, March 2026
- Homes & Gardens, Ninja BlendBoss Tumbler Blender review, April 2026
- TechRadar, Ninja BlendBOSS review, January 2026
- SharkNinja Support, DB300 Series Ninja BlendBOSS FAQs
Product photos come from the Walmart listings and belong to Walmart and SharkNinja.
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