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Hamilton Beach 51101AV vs KOIOS 850W Bullet Side-by-Side Comparison

Hamilton Beach 51101AV vs. KOIOS 850W Bullet. We compared these two personal blenders so you can easily decide which one is a better fit.

By , , , and ·Updated

Hamilton Beach 51101AV

Koios Pro 850W Bullet 

Hamilton Beach 51101AV vs. KOIOS 850W Bullet: In the Same Segment, but One is Better

Overall Verdict

Ranking by
OverallScore Performance60% Design25% Usability15% ScoreOverall 60%Performance 25%Design 15%Usability Koios Pro 850W BulletHamilton Beach 5110...7.47.18.37.32.91.45.05.7
Showing: 2/2 Items

Although in our tests the KOIOS 850W Bullet failed to produce a silky combination of kale, spinach and celery, it is a good blender to quickly prepare frozen fruit smoothies and protein shakes. This blender  does not look in really good quality, but appears  firmly-designed and  decently  priced.  There are standard issues for a blender that is tested as budget-priced, but for the most part, we were comfortable with its shortcomings.

The Hamilton Beach 51101AV, by contrast, is not satisfying enough to use. We tested it against many similarly-priced blenders and found that it couldn’t compete with any of them.  Its finish and features don't quite match up to its counterparts either, with the flimsy blending cup and poorly-designed construction.

Pros & Cons

  • Inexpensive and easy to use with one-touch blending. 
  • Blending cup features measuring lines. 
  • Compact design makes it perfect for use in small spaces. 
  • It is adequate for light blending performance.
  • 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
  • The low-powered motor limits its capabilities. 
  • Poorly-built quality impairs the machine’s overall performance and durability. 
  • It works inconsistently 
  • The blades are too short, which affects the blending time and final results.
  • No option for hands-free operation

Key Specs

Dimension
H12 x W3.8 inches
H12.2 x W5.5 inches
Weight
1.7 lbs (0.8 kg)
2.9 lbs (1.3 kg)
Number of speeds
1
1
Pulse/Turbo option
No
No
Dishwasher-safe wand
Yes
Yes
Accessories
A to-go lid
4 lids, an extra blade assembly, a cleaning brush, two extra blending cups

Where to Buy

Price at publication
$20.48
$60.22

*You help support HealthyKitchen101's product testing and reviews by purchasing from our retail partners.

Analysis and Test Results

Performance

Overall Performance Scoring
1.4
7.1

Protein Shake

3.4
9.2
Hamilton Beach 51101AV Protein Shake Video
A batch of protein shake prepared by the Hamilton Beach Single-Serve Blender is checked for smoothness by being drained through a stainless steel mesh strainer, with a smartphone displaying the total blending time (3 minutes and 45 seconds) next to it.
Using a spoon to scoop a small smattering of dried blueberry chunks from a mesh strainer containing protein shake produced the Hamilton Beach 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
3 mins 46 secs
56 secs
Result
Coarse
Smooth

Frozen Fruit Smoothie

0.0
8.0
Hamilton Beach 51101AV Frozen Fruit Smoothie Video
To check for solid chunks, after finishing blending, the fruity smoothie made by the Hamilton Beach portable blender is spread throughout a white paper.
A spoon of fruity smoothie packed with blueberries, blackberries, strawberries, and mango made by the Hamilton Beach small blender.
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
2 mins
1 min 20 seconds
Result
Failed
Silky Smooth

Fibrous Greens

0.0
5.0
Hamilton Beach 51101AV Fibrous Greens Video
A glass of water with fibrous greens pulp produced by the Hamilton Beach 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
Hamilton Beach 51101AV Crushed Ice Video
A black tray of crushed ice produced by the Hamilton Beach Blender being on a table.
The amount of unblended ice cubes (4.48 oz) of the Hamilton Beach 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
Faild
Coarse
Unblended Ice
75% of 6 oz
77% of 6 oz

Design

Overall Design Scoring
5.0
8.3

In the Box

The Hamilton Beach personal blender lying on a table with a paper carton box and user guide by its sides.
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 Hamilton Beach 51101AV Personal Blender standing on a gray table, with the length of its motor base being noted to the side as 5.8 inches, and the total length and width of the unit as 12 inches and 3.8 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
12.0" (30.5 cm)
12.2" (31.0 cm)
Width
3.8" (9.7 cm)
5.5" (14.0 cm)
Weight
1.7 lbs (0.8 kg)
2.9 lbs (1.3 kg)

Build Quality

5.0
8.0
The motor base and blending cup with blade assembly permanently attached of the Hamilton Beach blender.
The motor base and blending cup of the KOIOS Bullet single-serve blender lying side by side on a gray table.

Blades

5.0
7.5
A close-up of the blade assembly featuring 4 stainless steel prongs inside the blending cup of the Hamilton Beach personal blender.
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
Flat and Cross
Blade Count
4 blades
(Flat) 2 blades, (Cross) 4 blades
Removable
No
Yes
Dishwasher Safe
Yes
No

Motor Base

The Hamilton Beach motor base standing on a white table.
The Hamilton Beach motor base standing on a white table.
A close-up of the front interface of the Hamilton Beach motor base.
A close-up of the power cord featuring a 2-plug in the underside of the Hamilton Beach motor base.
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
120
120 V
Rated Power
175
850 Watt
Working Time
N/A
≤ 1 minute
Protection
No
No
Weight
1.2 lbs (0.5 kg)
2.4 lbs (1.1 kg)
Cord Length
2.1 ft (0.6 m)
4.1 ft (1.2 m)
Extra Feature
Ventilation holes
suction feet, ventilation holes

Blending Cup

5.0
10
The Hamilton Beach blender cup standing on a table with dimension measurements written to the side (4x8.2x2.4 inches).The Hamilton Beach blender cup standing on a table with dimension measurements written to the side (4x8.2x2.4 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.
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
14 Oz
10 oz, 17 oz, and 17 oz
Weight
0.4 oz (11 g)
0.2 lb, 0.23 lb, and 0.34 lb
Dishwasher Safe
Yes
Yes
Measurement
Yes
No
Suitable For
Small batches
Small batches
Accessories
No
two spout lids, one flat-top lid, one sieve lid

Speed and Controls

Someone is measuring the noise level of the Hamilton Beach personal blender with the noise meter (98.8 dB).
Someone is measuring the noise level of the KOIOS personal blender with the noise meter (96.9 dB).
Activation
Button
Push
Min Speed
N/A
N/A
Max Speed
23,341 RPM
22,648 RPM
Presets
No
No
Noise Level
98 dB
97 dB
Digital Display
No
No
Pulse Mode
No
No

Usability

Overall Usability Scoring
5.7
7.3

Hands-Free Operation

4.6
5.7

Assembly

6.0
10

Cleanability

8.5
9.5

Behind the Comparison

Headshot of Tina Pham
Tina PhamReviewer

Tina Pham is a staff writer and reviewer, with five years of experience in the industry. As a passionate amateur home cook, she loves to discover practical cooking solutions, and has made it her mission to bring her findings to every kitchen. Her ultimate goal is making cooking more of a pleasure for all.

Headshot of Lap Vo
Lap VoTest Lead

Lap is Head of the Research, Testing, and Review Team (RTR Team) at HealthyKitchen101.com, where he directs and supervises the testing of kitchen gadgets and appliances.

Headshot of Tuyet Pham
Tuyet PhamProfessional Chef

Tuyet Pham is an award-winning Saigonese chef passionate about delicious and healthful foods. At HealthyKitchen101, she develops recipes and collaborates with our Research, Testing, and Review lab to evaluate the performance of cooking appliances. Her assessments add a strong authoritative voice to our product scoring process.

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Nguyen NtkVisual Specialist

Nguyen Ntk is a graphic designer, photographer, and videographer whose philosophy centers around respecting and celebrating the beauty of reality. Through his lenses, Nguyen strives to capture the true essence of objects and events, showcasing and highlighting authentic features without distortion or exaggeration.

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