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SunrisePro Supreme vs. Mueller 4-Stage Manual Sharpener Side-by-Side Comparison

SunrisePro Supreme vs. Mueller 4-stage sharpener: Compare how they stack up in our speed, sharpness, and ease-of-use tests.

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 SunrisePro Supreme vs. Mueller 4-Stage Manual Sharpener: When Ease of Use Matters

Overall Verdict

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The SunrisePro Supreme and the Mueller 4-stage sharpeners are quick sharpeners, each taking just over  a minute to sharpen a uselessly dull knife to the lemon-cutting level. Your knife can achieve the same level of sharpness with either of them. However, the SunrisePro is slightly faster and gentler on the knife edge.

Design-wise, though, the Mueller is the better choice, despite its high center of gravity. Most users will appreciate its sizable body, large grip, and spacious working section. We can’t say the same about the SunrisePro: Its small size and suction base aren’t for everybody. 

All in all, we think the Mueller’s usability over-compensates for its negligible inferiority in performance when compared to the SunrisePro.

Pros & Cons

  • Strong, sturdy build
  • Extremely quick sharpening
  • Great sharpness 
  • Affordable price
  • Strong suction base (while it works)
  • Strong construction, pretty coloring
  • Quick sharpening
  • Scissor slot
  • Ease of use
  • Suction base is surface-discriminatory
  • It can peel off a lot of metal
  • High center of gravity
  • Harsh on the knife edge

Key Specs

Stages
1
3
Scissor sharpener
No
Yes
Abrasives
Tungsten carbide
Diamond, tungsten carbide, ceramic
Grit size
Coarse
Coarse, Medium, Fine
Dimensions
L2.3 x W2.3 x H2.6 inches
L9.3 x W1.8 x H3.1 inches

Where to Buy

Price at publication
$25,98
$12.35

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Analysis and Test Results

Performance

Overall Performance Scoring
7.5
6.7

Sharpening Time to Cut a Lemon

9.6
8.8
Sharpening Time
1 minute 5 seconds
1 minute 15 seconds
Cutting Feel
Swift and smooth
Swift and smooth

Material Retention

6.0
5.0
SunrisePro Supreme Material Retention
SunrisePro Supreme Material Retention
SunrisePro Material Retention
Metal sharpening residue in a bowl
Metal sharpening residue in a bowl
Medal dust on the abrasive slots of the Mueller steel knife sharpener
Sharpening Time
1 minute
1 minute
Target Sharpness

Maximum Sharpness Achieved

8.0
8.0
Sharpening Time
6 minutes
6 minutes
Sharpness Level
8 (Chicken breast with skin, 1 swipe)
8 (Chicken breast with skin, 1 swipe)

Edge Smoothness

5.0
4.0
SunrisePro Supreme Edge Smoothness
Close up view in vignette of the knife blade and knife edge after sharpening with the Mueller knife sharpener

Design

Overall Design Scoring
8.0
9.1

In the Box

SunrisePro Supreme In the Box
The Mueller 4-stage knife sharpener lying next to its package box, user guide, and promotion leaflets

Dimensions

SunrisePro Dimensions
The Mueller handheld sharpener with arrows and figures showing its dimensions.
Length
2.3" (5.8 cm)
9.3" (23.6 cm)
Width
2.3" (5.8 cm)
1.8" (4.6 cm)
Height
2.6" (6.6 cm)
3.1" (7.9 cm)
Weight
2.3 oz (65 g)
8.6 oz (244 g)

Build Quality

8.0
9.1
SunrisePro Supreme Build Quality
The Mueller sharpener standing on a surface

Working Section

SunrisePro Supreme Working Section
The working section of the Mueller with 4 abrasive slots on a frame and part of its handle and base
The working section of the Mueller with 4 abrasive slots on a frame and part of its handle and base
Top view of the abrasive slots of the Mueller handheld sharpener, with scissor slot, tungsten blades, diamond rods, and ceramic rods
Levels of Sharpening
Coarse
Sharpen (slot 1, 2, 3), Hone (slot 4)
Abrasive
Metal blades
Tungsten carbide blades, diamond rods, ceramic rods
Mechanism
Pull through
Pull through
Sharpening Angle
20 degrees
20 degree

Base

SunrisePro Supreme Base
The Mueller sharpener lying on a surface with its base in full view
Material
Silicone
ABS plastic
Feet Type
Suction cup
Anti-slip rubber pads

Grip

8.0
9.0
SunrisePro Supreme Grip
The grip of the Mueller steel knife sharpener and part of its body
Material
ABS plastic
ABS plastic and rubber

Usability

Overall Usability Scoring
7.0
8.2

Slot Arrangement

10
7.0
SunrisePro Supreme Slot Arrangement
The working section on the Mueller handheld sharpener, with 1 slot for scissors and slots 2, 3, 4 for knives

Insertion

7.5
9.0
SunrisePro Supreme Insertion
Top view of a kitchen knife in one of the Mueller’s abrasive slots, the sharpener being held by one hand

Pulling Through

6.0
7.5
2 hands holding and sharpening a kitchen knife with the Mueller sharpener

Stability on a Clean Surface

6.5
8.5
1 hand holding a knife and sharpening it with the Mueller on a countertop, the Mueller held in another hand

Stability on a Wet and Dirty Surface

3.0
8.0
A kitchen knife being sharpened with the Mueller sharpener on a countertop sprinkled with salt particles