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Bella Rocket Blender 12-Piece Set vs. KOIOS Pro 850W Bullet Side-by-Side Comparison

Bella Rocket Blender 12-Piece Set vs. KOIOS Pro 850W Bullet. Both produce comparable smoothie-making results, but the KOIOS appears to be more practical.

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Bella Rocket Blender 12-Piece Set vs. KOIOS Pro 850W Bullet

Overall Verdict

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Both blenders are similarly priced and come with a generous set of accessories, but the KOIOS Pro 850W Bullet outperformed the Bella Rocket Blender 12-Piece Set in processing raw nuts, dried berries, and high-fiber foods. As a result, the protein shakes and fibrous mixtures the KOIOS produced had superior nutrient extraction and smoother texture compared to those from the Bella, despite the tiny chunks here and there. When it came to making the perfect smoothie, the BELLA Rocket Blender and the KOIOS Pro 850W Bullet both offered comparable performance. However, our data revealed that the Bella was slightly faster in this regard.

In terms of construction, both blenders are moderately built, but the KOIOS has a sleeker metal finish and offers more stable operation, giving it an edge over the functional yet flimsy-looking Bella. Considering all factors, we recommend the KOIOS 850W Bullet over the Bella Rocket.

Pros & Cons

  • Adequate build quality allows for reliable performance.
  • The motor is less likely to overheat like some of its rivals.
  • It’s pretty good at processing frozen fruits and raw nuts. 
  • Its ease of use provides a satisfying blending experience.
  • Competitive price tag 
  • Extra extractor blade for dry blending 
  • Powerful motor allows for a wide range of tasks 
  • Two blending cups are included 
  • Intuitive to use 
  • The blades can be removed from the base for thorough cleaning
  • It may not add any aesthetic interest to your kitchen due to its inspired design.
  • The ability to liquify fibrous greens is compromised by the low price. 
  • The resting period between blending intervals is longer than average, taking up to 3 minutes.
  • No option for hands-free operation

Key Specs

Dimension
H11.8 x W4.5 inches
H12.2 x W5.5 inches
Weight
2.3 lbs (1.0 kg)
2.9 lbs (1.3 kg)
Number of speeds
1
1
Pulse/Turbo option
No
No
Dishwasher-safe wand
Yes
Yes
Accessories
Two extra blending cup, two storage lids, an extra blade assemblies, two lip rings, two shaker lids
4 lids, an extra blade assembly, a cleaning brush, two extra blending cups

Where to Buy

Price at publication
$26.59
$60.22

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Analysis and Test Results

Performance

Overall Performance Scoring
5.7
7.1

Protein Shake

7.5
9.2
Bella 12 Piece Rocket Blender Protein Shake Test
A batch of protein shake prepared by the BELLA Single-Serve Blender is checked for smoothness by being drained through a stainless steel mesh strainer, with a smartphone displaying the total blending time (1 minutes and 30 seconds) next toit.
Using a spoon to scoop a small smattering of food chunks from a mesh strainer containing protein shake produced the BELLA personal blender.
KOIOS 850W Bullet Protein Shake Video
A batch of protein shake packed with dried blueberries, oatmeal, and almonds prepared by the KOIOS Bullet Personal Blender is checked for smoothness by being drained through a stainless steel mesh strainer, with a smartphone displaying the total blending time (56 seconds) next to it.
A couple of unblended almond chunks of the KOIOS Bullet being scooped from the mesh strainer with a stainless steel spoon.
Blending Time
1 min 30 secs
56 secs
Result
Smooth
Smooth

Frozen Fruit Smoothie

9.0
8.0
Bella 12 Piece Rocket Blender Frozen Fruit Smoothie Test
A spoon of fruity smoothie packed with blueberries, blackberries, strawberries, and mango made by the BELLA portable blender with a smartphone displaying the total blending time ( 1 minute and 10 seconds) next to it.
To check for solid chunks, after finishing blending, the fruity smoothie made by the BELLA personal blender is spread throughout a white paper.
KOIOS 850W Frozen Fruit Smoothie Video
To check for solid chunks, after finishing blending, the fruity smoothie made by the KOIOS Bullet single-serve blender is spread throughout a white paper with a smartphone displaying the total blending time ( 1 minute and 20 seconds) next to it.
A spoon of fruity smoothie packed with blueberries, blackberries, strawberries, and mango made by the KOIOS Bullet Blender.
Blending Time
1 min 10 seconds
1 min 20 seconds
Result
Silky Smooth
Silky Smooth
Suction

Fibrous Greens

0.0
5.0
Bella 12 Piece Rocket Blender Fibrous Greens Test
A glass of water with fibrous greens pulp produced by the BELLA Single-Serve Blender.
KOIOS 850W Fibrous Greens Video
A glass of water with fibrous greens pulp produced by the KOIOS Bullet Single-Serve Blender.
A glass of water with fibrous green pulp produced by the KOIOS Bullet Personal Blender sinking from its top to bottom.
Blending Time
20 seconds
20 seconds
Result
Failed
Very Coarse

Crushed Ice Cubes

0.0
0.0
Bella 12 Piece Rocket Blender Crushed Ice Test
A black tray of crushed ice produced by the BELLA being on a table.
The amount of unblended ice cubes (4.73 oz) of the BELLA single-serve blender displayed on a scale’s screen.
KOIOS 850W Crushed Ice Video
A black tray of crushed ice produced by the KOIOS Personal Blender being on a table.
The amount of unblended ice cubes (4.61 oz) of the KOIOS Bullet single-serve blender displayed on a scale’s screen.
Ice Fineness
Coarse
Coarse
Unblended Ice
79% of 6 oz
77% of 6 oz

Design

Overall Design Scoring
7.8
8.3

In the Box

The BELLA personal blender lying on a table with its additional accessories, including two blending cups, two storage lids, two shaker lids, a blade assembly, two lip rings, a user guide, and a paper carton box.
The KOIOS Bullet personal blender lying on a table with its accessories, including two lids, two additional blending cup with lids, a paper carton box, an additional blade assembly, a cleaning brush, and a user guide.

Dimensions

The BELLA The PopBabies portable blender standing on a table, with the length of its motor base being noted to the side as 6.2 inches, and the total length and width of the unit as 11.8 inches and 4.5 inches, respectively.
Koios Pro 850W Bullet Personal Blender standing on a gray table, with the length of its motor base being noted to the side as 7.2 inches, and the total length and width of the unit as 12.2 inches and 5.5 inches, respectively.
Height
11.8" (30.0 cm)
12.2" (31.0 cm)
Width
4.5" (11.4 cm)
5.5" (14.0 cm)
Weight
2.3 lbs (1.0 kg)
2.9 lbs (1.3 kg)
Length
Shaft Length

Build Quality

7.5
8.0
The motor and blending cup with the blade assembly attached of the BELLA personal blender lying on a table.
The motor base and blending cup of the KOIOS Bullet single-serve blender lying side by side on a gray table.

Blades

6.5
7.5
The BELLA Cross Blade and Flat Blade
The BELLA Cross Blade and Flat Blade
The BELLA Cross Blade
The BELLA Flat Blade
A close-up of the flat blade assembly featuring 2 prongs of the KOIOS Bullet personal blender.
A close-up of the flat blade assembly featuring 2 prongs of the KOIOS Bullet personal blender.
A close-up of the blade assembly featuring 4 prongs of the KOIOS Bullet personal blender.
Material
Stainless Steel
Stainless Steel
Type
Cross and Flat
Flat and Cross
Guard Material
(Cross) 4 blades, (Flat) 2 blades
Blade Count
4
(Flat) 2 blades, (Cross) 4 blades
Removable
No
Yes
Dishwasher Safe
Yes
No

Motor Base

The BELLA Motor Base
The BELLA Motor Base
A close-up of the BELLA’s motor base and power cord
A close-up of the power cord of the BELLA personal blender
The motor base of the KOIOS Bullet personal blender standing on a white table.
The motor base of the KOIOS Bullet personal blender standing on a white table.
A close-up of the motor base of the KOIOS Bullet personal blender.
Rated Voltage
120V
120 V
Rated Power
240 Watt
850 Watt
Working Time
≤ 1 minute
≤ 1 minute
Protection
No
No
Weight
1.9 lbs (0.9 kg)
2.4 lbs (1.1 kg)
Cord Length
2.3 ft (0.7 m)
4.1 ft (1.2 m)
Extra Feature
Silicone feet
suction feet, ventilation holes

Blending Cup

10
10
Three blending cups of the BELLA Rocket blender on a table, with dimension measurements written to the side. The first cup is measured 3.3x3.9x2.6 inches, second cup is 3.3x6.1x2.6 inches, third cup is 3.3x6.1x2.6 inches.
Three blending cups of the BELLA Rocket blender on a table, with dimension measurements written to the side. The first cup is measured 3.3x3.9x2.6 inches, second cup is 3.3x6.1x2.6 inches, third cup is 3.3x6.1x2.6 inches.
The blending cup of the BELLA personal blender standing on a table with dimension measurements written to the side ( 3.3x3.9x2.6 inches)
The blending cup of the BELLA personal blender standing on a table with dimension measurements written to the side ( 3.3x6.1x2.6 inches).
The BELLA’s Lids
Three blending cups of the KOIOS Bullet on a table, with dimension measurements written to the side. The first cup is measured 3.4x4x2.2 inches, second cup is 3.4x6.5x2.2 inches, third cup is 3.4x6.5x2.2 inches.
Three blending cups of the KOIOS Bullet on a table, with dimension measurements written to the side. The first cup is measured 3.4x4x2.2 inches, second cup is 3.4x6.5x2.2 inches, third cup is 3.4x6.5x2.2 inches.
The blending cup of the KOIOS Bullet personal blender standing on a table with dimension measurements written to the side (3.4x4x2.2 inches).
The blending cup of the KOIOS Bullet personal blender standing on a table with dimension measurements written to the side (3.4x6.5x2.2 inches).
Material
Plastic
Plastic
Capacity
13.5 oz, 13.5 oz, and 6 oz
10 oz, 17 oz, and 17 oz
Weight
0.27 lb, 0.27 lb, and 0.18 lb
0.2 lb, 0.23 lb, and 0.34 lb
Dishwasher Safe
Yes
Yes
Measurement
No
No
Suitable For
Small batches
Small batches
Accessories
Two storage lid, two lip rings, two shaker Lid
two spout lids, one flat-top lid, one sieve lid

Speed and Controls

Someone is measuring the noise level of the BELLA personal blender with the noise meter (96 dB).
Someone is measuring the noise level of the KOIOS personal blender with the noise meter (96.9 dB).
Activation
Twist
Push
Min Speed
N/A
N/A
Max Speed
24,206 RPM
22,648 RPM
Presets
No
No
Noise Level
96 (db)
97 dB
Digital Display
No
No
Pulse Mode
No
No

Usability

Overall Usability Scoring
8.7
7.3

Hands-Free Operation

8.6
5.7

Assembly

9.0
10

Cleanability

8.5
9.5