BLACK+DECKER FusionBlade vs KOIOS 850W Bullet Side-by-Side Comparison

Tina Pham
Tina Pham
Reviewer
Nguyen Ntk
Nguyen Ntk
Visual Specialist
Reviewed
Our recommendations are made independently through research and testing following our review procedure. We may receive commissions from purchases made via our links at no additional costs to you.
Tested Using Methodology v1.0
Updated Nov 28, 2022
Tested Using Methodology v1.0
Updated Dec 1, 2022
BLACK+DECKER FusionBlade Personal Blender Review
Koios Pro Bullet Personal Blender Review
Blender type
personal
personal
Power
275W
850W

Our Verdict

6.6
Overall Score
  • Performance (60%)
    6.1/10
  • Design (25%)
    7.4/10
  • Usability (15%)
    7.0/10
7.4
Overall Score
  • Performance (60%)
    7.1/10
  • Design (25%)
    8.3/10
  • Usability (15%)
    7.3/10

Design aside, these two personal blenders share standard features and have minor differences in their testing results.  The KOIOS 850W Bullet performed faster than the BLACK+DECKER FusionBlade in most of the tests, but its outcomes weren’t quite as smooth, while neither blender was capable of crushing ice cubes. 

Ultimately, choosing between the two will likely become which one is considered more physically attractive. Another deciding factor may be the KOIOS’s accessory package which, while it doesn’t play a big part in the blender’s efficiency, will allow for a wider variety of textures in your kitchen food preparation.

Performance

6.1
Performance Scores
  • Protein Shake (40%)
    7.2/10
  • Frozen Fruit Smoothie (30%)
    6.0/10
  • Fibrous Greens (20%)
    7.0/10
  • Crushed Ice Cubes (10%)
    0/10
7.1
Performance Scores
  • Protein Shake (40%)
    9.2/10
  • Frozen Fruit Smoothie (30%)
    8.0/10
  • Fibrous Greens (20%)
    5.0/10
  • Crushed Ice Cubes (10%)
    0/10
7.2

Protein Shake

9.2
BLACK+DECKER FusionBlade Protein Shake
BLACK+DECKER FusionBlade Protein Shake 1
  • Blending Time: 2 mins
  • Result: Smooth

In this protein shake test, the FusionBlade came out as one of the best personal blenders. Its sturdy 2-prong blade, together with the 275-watt motor,  breaks down tough foods, including almonds and dried berries, without much problem. However, for some reason, it had a hard time with oatmeal, requiring up to 2 minutes — longer than the average blending time — to completely pulverize the oats. If you’re willing to spend a few extra seconds on prep, this may not matter much. Overall, the smoothness of its product was more than acceptable, with just a very tiny flake of almond remaining solid.

KOIOS 850W Bullet Protein Shake
KOIOS 850W Bullet Protein Shake 1
  • Blending Time: 56 seconds
  • Result: Smooth

The KOIOS can make a good breakfast or post-workout milkshake in a matter of seconds. In this test, it took less than 1 minute to break down and combine all the ingredients, which was faster than most. The powerful motor couldn’t quite remove all lumps from the protein shake, but only a few chunks remained unblended, so our drink was still pleasant to drink. Moreover, the residual solids didn’t affect the tasting experience much — they were so tiny that they didn’t bother us at all.

6.0

Frozen Fruit Smoothie

8.0
BLACK+DECKER FusionBlade Frozen Fruit Smoothie
BLACK+DECKER FusionBlade Frozen Fruit Smoothie 1
  • Blending Time: 1 min 40 seconds
  • Result: Silky Smooth

If you've ever wondered how efficient a low-powered personal blender is in preparing frozen-fruit smoothies, the BLACK+DECKER FusionBlade can give you an answer. Although this machine isn’t so powerful, it liquified the ingredients with little effort, though a few shakes were required to ensure the blending process went smoothly. 

The smoothie was churned into a smooth, chilly, and slushy consistency, though it lacked the perfect ice-cream-like texture we got from faster blenders. This was because frozen fruits thaw quickly at room temperature, diluting the overall consistency if you don’t blend fast enough. Simply put, the longer processing time of the FusionBlade means its smoothie came out thinner and less desirable than it should. 

Nevertheless, this machine is an adequate personal blender for making frozen-fruit smoothies. We found it’s better at this job than many other models within the same range, and the great smoothness of its product in this test reminds us of pricier blenders.

KOIOS 850W Frozen Fruit Smoothie
KOIOS 850W Frozen Fruit Smoothie 1
  • Blending Time: 1 min 20 seconds
  • Result: Silky Smooth
  • Suction:

The KOIOS Bullet brought all the ingredients together for a great-tasting smoothie in one minute and twenty seconds. Of all the similarly-priced blenders we tested, it was the only one that could liquify frozen ingredients that quickly. Most were 20-40 seconds slower, but that can make a difference; frozen foods thaw quickly at room temperature, so the longer you blend, the more your smoothie will be diluted.

Simply put, the quicker performance of the KOIOS made for a thicker and more ice-cream-like smoothie. Chilly and fresh enough to quench our thirst, it also retained the texture that people look for in frozen fruit smoothies.

7.0

Fibrous Greens

5.0
BLACK+DECKER FusionBlade Fibrous Greens
BLACK+DECKER FusionBlade Fibrous Greens 1
  • Blending Time: 20 seconds
  • Result: Coarse

The FusionBlade didn’t struggle during the 20-second runtime (our time limit for this test). More impressively, of all the blenders we tested from this market segment, the BLACK+DECKER stood out with the best extraction of high-fiber foods. However, that doesn’t mean it did a complete job; there was still a considerable amount of coarse pulp left behind after we drained the mixture through a mesh strainer. It probably could have been better if we allowed our machine to blend longer. For sure, a quality green juice is worth a little extra waiting time.

KOIOS 850W Fibrous Greens
KOIOS 850W Fibrous Greens 1
  • Blending Time: 20 seconds
  • Result: Very Coarse

We evaluated how well this blender handled fiber by blending kale, celery, spinach, and water for 20 seconds. The mixture came out grainy with a substantial amount of partially blended particles. Then, we drained it through a mesh strainer and examined the pulp. It looked like green sand with a moderately coarse consistency. We didn't taste the mixture prior to draining, but this coarseness, together with the volume of pulp, meant this blender failed to extract most of the flavor from the greens.

We can’t say for sure if more blending time would improve the final result, but can conclusively say that 20 seconds worth of blending is not enough. By comparison, the Ninja Fit did the same job much better, leaving behind a significantly smaller amount of visible flakes. 

Our conclusion is that the KOIOS is just mediocre for blending leafy veggies. If you want to avoid leafy chunks in a quick high-fiber beverage, this is not the blender for you.

0.0

Crushed Ice Cubes

0.0
BLACK+DECKER FusionBlade Crushed Ice
BLACK+DECKER FusionBlade Crushed Ice 1
  • Ice Fineness: Chunky
  • Unblended Ice: 79% of 6 oz

It’s safe to say the BLACK+DECKER was not up to the heavy-duty task of crushing ice cubes. As Scotty might say, it just doesn’t have the power. That’s not a major hit to its value — we’ve learned that not many personal blenders are capable of producing fluffy, snow-like crushed ice. If you insist on that sort of blend, you’ll need a more powerful motor. Most of this FusionBlade’s ice remained very chunky. 

Overall, the BLACK+DECKER FusionBlade’s performance was not all bad, and we really like this blender, but there are still a few good ice-crusher alternatives to choose from. For instance, try the Ninja Fit, the NutriNinja, or the NutriBullet instead.

KOIOS 850W Crushed Ice 1
KOIOS 850W Crushed Ice
  • Ice Fineness: Coarse
  • Unblended Ice: 77% of 6 oz

In this test, its performance was lackluster. The machine itself is incapable of crushing ice cubes. In fact, attempting to do so is not a good idea; the heavy-duty task can take a toll on your device and impair its performance in more ordinary blends.

Design

7.4
design Scores
  • Blades (20%)
    6.0/10
  • Build Quality (60%)
    7.0/10
  • Blending Cup (20%)
    10/10
8.3
design Scores
  • Blades (20%)
    7.5/10
  • Build Quality (60%)
    8.0/10
  • Blending Cup (20%)
    10/10

In the Box

BLACK+DECKER FusionBlade In the Box
  • Motor Base 
  • Extractor Blade
  • Two Blending Cups
  • Two Travel Lids
  • Recipe Book & User Guide
KOIOS 850W Bullet In the Box
  • Motor Base 
  • Two Blade Assemblies 
  • Four Lids 
  • Cleaning Brush 
  • Three Blending Cups
  • Recipe book & user guide

Dimensions

BLACK+DECKER FusionBlade Dimensions
  • Height:
    14.5" (36.8 cm)
  • Width:
    5.5" (14.0 cm)
  • Weight:
    2.3 oz (65 g)
  • Shaft Length:

As we learned from our research, the ideal weight of a personal blender is between 2 and 4 pounds, and at 2.3 lbs, the FusionBlade fits this metric. While it appears in pictures to be the roughly same size as others, it’s actually taller than average. Nonetheless, it’s still compact enough to easily find in your cabinet when not in use.

KOIOS 850W Bullet Dimension
  • Height:
    12.2" (31.0 cm)
  • Width:
    5.5" (14.0 cm)
  • Weight:
    2.9 oz (82 g)
  • Shaft Length:

The KOIOS Bullet’s dimensions are about as standard as they come. At 12 inches tall by 5.5 inches wide, it is a typical size for a personal blender and can easily tuck away in your cabinet. Mobility is also very practical thanks to its compact form.

7.0

Build Quality

8.0
BLACK+DECKER FusionBlade Build Quality

This FusionBlade is powered by a motor encased in a simple plastic base. The overall quality and materials of the casing are inferior to premium models, but we haven’t experienced any durability issues so far. The same thing can be said about the blade assembly and plastic cup. Cheaply designed but otherwise sturdy, these pieces feel like they’ll be with you for years to come.

KOIOS 850W Bullet Build Quality

Build quality is moderate, with a body mostly made of plastic. The stainless steel blades look promising in terms of durability and capability while the motor base is rather flimsy. However, despite that, this blender stands very firmly during operation. It doesn’t jump around while handling solid foods like most mid-range counterparts such as the Magic Bullet. 

We like the metal surface on the front of the motor base. It gives our blender a more attractive appearance and better quality feel. After a couple of months in the lab, this surface still retains its original shine — even after the occasional cleaning with a metal scouring pad.

6.0

Blades

7.5
BLACK+DECKER FusionBlade Blade
  • Material:
    Stainless Steel
  • Type:
    Dull Blade
  • Guard Material:
  • Blade Count:
    2
  • Removable:
    No
  • Dishwasher Safe:
    Yes

The blade features two dull prongs rather than the more common sharp blades. This typically means the blender should be used for processing dry ingredients rather than wet mixtures, but the FusionBlade’s testing performance somehow suggests otherwise. And as mentioned above, the lack of extra prongs means this machine doesn’t blend as quickly as its counterparts that come with four or even six prongs.

KOIOS 850W Bullet Blade
KOIOS 850W Bullet Blade 1
  • Material:
    Stainless Steel
  • Type:
    Sharp Blade
  • Guard Material:
  • Blade Count:
    6
  • Removable:
    Yes
  • Dishwasher Safe:
    No

The KOIOS Bullet comes with two extractor blades: one is flat and the other shaped like a cross. 

The flat blade has two dull prongs tilted slightly upwards and is only compatible with the short blending cup. We haven’t performed any tests on it, but believe this add-on will be handy for grinding hard ingredients like coffee beans, raw nuts, and whole grains. The blender’s mighty motor and consistent performance suggest it should be able to handle such ingredients.

Most of your blended treats will be best served by the cross blade. With six sharp prongs, it contacts more food at any given moment, resulting in finer outcomes and faster blending times. That being said, it looks less sturdy than some models (particularly the Ninja Fit). More prongs also means you’ll have more nooks and crannies to weave in and out of when it comes to cleaning.

Motor Base

BLACK+DECKER FusionBlade Motor Base
BLACK+DECKER FusionBlade Motor Base 1
BLACK+DECKER FusionBlade Motor Base 2
BLACK+DECKER FusionBlade Motor Base 3
  • Rated Voltage:
    120V
  • Rated Power:
    275 Watt
  • Working Time:
    N/A
  • Protection:
    No
  • Weight:
    1.9 lbs (0.9 kg)
  • Cord Length:
    2.3" (5.8 cm)
  • Extra Feature:
    rubber feets

Despite the exterior being entirely plastic, the 275-watt motor base is on the robust side. It is wider at the bottom than the top to keep it steady, so the blender won’t walk around your counter while blending. There are also four rubber feet underneath to further help in this regard. They also help the blender avoid overheating by allowing some airflow to the motor. 

In general, personal blenders tend to have an operational time limit on their motors — usually between 1 and 4 minutes at a stretch. Beyond the limit, they may overheat and damage the motor. That said, there is no clear information about the BLACK+DECKER FusionBlade in that regard. We recommend that you don’t run your device longer than 1 minute per interval to ensure the best long-term use. 

KOIOS 850W Bullet Motor Base
KOIOS 850W Bullet Motor Base 1
  • Rated Voltage:
    120 V
  • Rated Power:
    850 Watt
  • Working Time:
    ≤ 1 minute
  • Protection:
    No
  • Weight:
    2.4 lbs (1.1 kg)
  • Cord Length:
    4.1 ft
  • Extra Feature:
    suction feet, ventilation holes

The main housing of the KOIOS Bullet is made from medium-grade plastic, except for the front surface. It is a little smaller than other personal blenders, but could surprisingly tackle our tests without slipping or rocking around on the counter thanks to the four rubber feet at the bottom. 

Most models around this price cannot run continuously for more than one minute because the motor can overheat. The KOIOS Bullet is not an exception despite the fact that it’s equipped with many ventilation holes for better heat dissipation. If your drinks demand a longer blending time, make sure you let your machine cool down for 20-30 seconds after each 1-minute interval.

10

Blending Cup

10
BLACK DECKER FusionBlade Blending Cup
BLACK DECKER FusionBlade Blending Cup 1
  • Material:
    Plastic
  • Capacity:
    20 oz
  • Weight:
    0.3 lb
  • Dishwasher Safe:
    Yes
  • Measurement:
    Yes
  • Suitable For:
    Small batches
  • Accessories:
    Travel lids

The set we bought includes two blending cups, but you can purchase more at BlackAndDeckerAppliances.com. All the cups provided by the manufacturer can be used interchangeably with the extractor blade. They also fit tightly with the included flip-top lids so you can enjoy your drinks on the go without mess. Another convenience is that the lids are easy to screw on and remove from the cups.

KOIOS Bullet Blending Cup
KOIOS Bullet Blending Cup 1
KOIOS Bullet Blending Cup 2
  • Material:
    Plastic
  • Capacity:
    10 oz, 17 oz, and 17 oz
  • Weight:
    0.2 lb, 0.23 lb, and 0.34 lb
  • Dishwasher Safe:
    Yes
  • Measurement:
    No
  • Suitable For:
    Small batches
  • Accessories:
    two spout lids, one flat-top lid, one sieve lid

In this set, there are two tall cups (17 oz) for blending watery mixtures and a short cup (10 oz) for grinding solid ingredients. The tall cups can be sealed tightly by either a flat-top lid or spout lid if you want to enjoy your drink on the go. And the short cup’s distinctive design looks lovely. It features a flat foot for increased stability and is particularly compatible with the sieve lid so you can use it as a shaker for ground spices like nutmeg, cinnamon, cocoa flour, ground coffee beans, or whatever seasonings you need.

Speed and Controls

  • Control Type:
    Button
  • Min Speed:
    N/A
  • Max Speed:
    N/A
  • Presets:
    No
  • Noise Level:
  • Digital Display:
    No
  • Pulse Mode:
    No

There is one button in the front, which you’ll use to switch the motor on. It has only one speed, and you simply hold the button down to keep it running. We found the button to be very responsive so you don’t need much force. The FusionBlade isn’t equipped with a pulse function, but you can still approximate it and get a chunky texture by pressing and releasing its button in short intervals.

  • Control Type:
    Push
  • Min Speed:
    N/A
  • Max Speed:
    N/A
  • Presets:
    No
  • Noise Level:
  • Digital Display:
    No
  • Pulse Mode:
    No

Like many personal blenders, the KOIOS offers only one speed option but doesn’t have buttons or any sort of controls. To blend, you simply press the cup down into the base, then hold it continuously until your smoothie is ready. The operating method is so simple that you may not need any practice. It’s easy to get comfortable with this blender.

Usability

7.0
usability Scores
  • Hands-Free Operation (60%)
    5.3/10
  • Assembly (20%)
    10/10
  • Cleanability (20%)
    9.0/10
7.3
usability Scores
  • Hands-Free Operation (60%)
    5.7/10
  • Assembly (20%)
    10/10
  • Cleanability (20%)
    9.5/10
5.3

Hands-Free Operation

5.7

Although the design couldn't be simpler, the BLACK+DECKER FusionBlade isn’t very comfortable to use. It requires that you press and hold the power button throughout the whole operation. Not only that, but you also cannot take your eyes off the blending cup in any sort of blend. This is because food often gets lodged under the blade and stops it from operating, which demands your timely intervention to resolve.

You can’t walk away while the KOIOS Bullet does its job the way you might with a full-sized blender. It requires you to keep a hand on it the whole time. Plus, you may occasionally need to pause to remove the cup and give it a thorough shake. 

Particularly in the smoothie test, frozen fruits got stuck under the blade and jammed it up. To even out the blend, we had to shake the cup after every 20 blending seconds. It gave us a good smoothie in 1 minute 20 seconds worth of runtime, so the process demanded four intervals total. Reviewers make a fuss about the repeated delays, but they’re a common occurrence among personal-size blenders. As long as you’re willing to spend an extra minute or two in the kitchen, it shouldn’t be a big deal.

10

Assembly

10

Attaching the cup, the blade, and the motor base together is effortless. You’ll need to screw the extractor blade onto the top of the blending cup first, then turn the whole thing upside down and place it on the blender base. A quick, simple turn to the right will lock the cup into place and you can start blending securely. 

Disassembly is even easier. Simply take the cup out from the base and unscrew the extractor blade. You can then replace the blade assembly with the spill-proof travel lid if you want to sip your drink on the go.

Setting up this blender is a breeze. After twisting the blade assembly onto the cup, you’ll need to flip the cup over and place it securely onto the motor base, aligning the cup’s protrusions with the grooves inside the motor base. To start blending, gently push the cup down as long as you desire. Once finished, release the cup from the motor base and unscrew the blade assembly.

9.0

Cleanability

9.5

All the removable pieces, including the blending cup, blade assembly, and travel lids, are top-rack dishwasher safe. We recommend washing them by hand with warm, soapy water, though, so they don’t wear down as quickly. We didn’t have any trouble scrubbing the blade’s undersides like we usually did with its competitors. Our only challenge was the blending cup, which was too narrow for even a small hand to get inside, so make sure you always have a bottle-cleaning brush available.

Of all the blenders we tested, the KOIOS is the only one with a blade that can be separated from its plastic base. It goes without saying, this can be a life-saver, especially since the blade assembly is not dishwasher safe. 

To remove the blade attachment from the base, push the blade gear forward until it falls out. Note that these two pieces screw very tightly together through a white gasket ring so you'll have to apply a significant force, which can be a challenge if your hands are weak or in pain. 

Once you’ve separated the blade attachment, plastic base, and gasket ring, they can be washed off easily with soapy water. The only parts that are tricky to clean are the blade’s undersides, but the included small brush will make life easier on you. 

The other pieces, including the lids and blending cups, can be put in the dishwasher.  For manual cleaning, just rinse them with soapy water.