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  1. Home
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  3. Compare

Razer Viper Ultimate vs J-Tech Digital V628X

Which Mouse Is Better?

    Top
    Main Differences
    Design
      StyleShapeBuild QualityWeightHand Size RecommendationWireless VersatilityCableMouse FeetIn The BoxPortabilityPalm Grip: Hand Size RecommendationClaw Grip: Hand Size RecommendationFingertip Grip: Hand Size Recommendation
    Control
      Main ButtonAdditional ButtonsClick LatencyCPISensor LatencySensor SpecificationsMouse WheelNoise
    Operating System And Software
      Configuration SoftwareMouse Compatibility
    Comments

Products

Razer Viper Ultimate
J-Tech Digital V628X

Tested using Methodology v1.5.1

Updated May 15, 2026 02:28 PM

SEE PRICE
Amazon

Tested using Methodology v1.0

Updated May 21, 2026 05:13 PM

SEE PRICE
Amazon
Razer Viper Ultimate Picture

Track

J-Tech Digital V628X Picture

Track

ConnectivityWireless
Type
Standard
Default Weight
74.9 g
Ambidextrous
True Ambidextrous
ConnectivityWired
Type
Vertical
Default Weight
Lock g
Ambidextrous
Locked

Our Verdict

Razer Viper Ultimate

J-Tech Digital V628X

The Razer Viper Ultimate is a much better-performing mouse than the J-Tech Digital V628X. The Razer performs better in every regard, though the J-Tech has a unique and customizable vertical design that may be more comfortable to some people after using it for extended periods.

GIFT THIS COMPARISON

0 

Variants

  • Viper Ultimate (Black)
  • Viper Ultimate (Black (Without Charging Dock))
  • V628X (Black)

Review

See Razer Viper Ultimate Review
See J-Tech Digital V628X Review
2 
0 

Check Price

Black
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEE PRICE
Amazon
Black (Without Charging Dock)
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEE PRICE
Walmart.com
Cyberpunk 2077
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
B&H
Mercury
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
BestBuy.com
Quartz
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
J-Tech Digital
Read more

Main Differences for
Work

Threshold 

0.10

Work 
 

0.0
0.0
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Full Comparison

Design

Style  

Style Picture  

Razer Viper Ultimate Style Picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X Style Picture Sample

SAMPLE

Join Now

for pictures & test results

Type 
 

Locked
Locked

Coating 
 

Locked
Locked

Lighting Color  

Locked
Locked

Shape  

3D Model  

Razer Viper Ultimate 3D Model Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X 3D Model Sample

SAMPLE

Join Now

for pictures & test results

Length  

Lock" (Lock mm)
Lock" (Lock mm)

Width  

Lock" (Lock mm)
Lock" (Lock mm)

Height  

Lock" (Lock mm)
Lock" (Lock mm)

Grip Width 
 

Lock mm
Lock mm

Ambidextrous 
 

Locked
Locked

Left-Handed Friendly 
 

Locked
Locked

Finger Rest 
 

Locked
Locked

Build Quality 
 

N/A
N/A

Build quality picture  

Razer Viper Ultimate Build quality picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X Build quality picture Sample

SAMPLE

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for pictures & test results

Weight 
 

N/A
N/A

Minimum Weight Picture  

Razer Viper Ultimate Minimum Weight Picture Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Minimum Weight Picture Sample

SAMPLE

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for pictures & test results

Lowest Weight 
 

Lock g
Lock g

Default Weight 
 

Lock g
Lock g

Weight Distribution 
 

Locked
Locked

Extra Weights 
 

Locked
Locked

Maximum Weight Without Wire 
 

Lock g

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

Razer Viper Ultimate Palm Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Palm Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

Claw Grip Hand Recommendation 
 

Razer Viper Ultimate Claw Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Claw Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

Fingertip Grip Hand Recommendation 
 

Razer Viper Ultimate Fingertip Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Fingertip Grip Hand Recommendation Sample

SAMPLE

Join Now

for pictures & test results

Right-handed 
 

Locked

Left-handed 
 

Locked
Locked

Ambidextrous 
 

Locked
Locked

Coating 
 

Locked
Locked

Finger Rest 
 

Locked
Locked

Wireless Versatility 
 

N/A
N/A

Maximum Of Paired Devices 
 

Locked

Bluetooth 
 

Locked
Locked

Receiver 
 

Locked
Locked

Battery Type 
 

Locked
Locked

Use When Charging 
 

Locked
Locked

On/Off Activation 
 

Locked
Locked

Receiver Extender 
 

Locked
Locked

Receiver Storing 
 

Locked
Locked

Battery Indicator  

Locked
Locked

Cable 
 

Connectivity  

Locked
Locked

Cable Length 
 

Lock ft (Lock m)
Lock ft (Lock m)

Cable Video  

Razer Viper Ultimate Cable Video Sample

SAMPLE

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for videos & test results

J-Tech Digital V628X Cable Video Sample

SAMPLE

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for videos & test results

Cable Type 
 

Locked
Locked

Permanent Kink 
 

Locked
Locked

Port Type: Mouse End 
 

Locked
Locked

Port Type: PC End 
 

Locked
Locked

Mouse Feet 
 

N/A
N/A

Mouse Feet picture  

Razer Viper Ultimate Mouse Feet picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X Mouse Feet picture Sample

SAMPLE

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for pictures & test results

Gliding Experience 
 

Locked
Locked

Material 
 

Locked
Locked

Extra Included 
 

Locked
Locked

In The Box 
 

In the box picture  

Razer Viper Ultimate In the box picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X In the box picture Sample

SAMPLE

Join Now

for pictures & test results

Portability 
 

N/A
N/A

Portability picture  

Razer Viper Ultimate Portability picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X Portability picture Sample

SAMPLE

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for pictures & test results

Volume 
 

Lock in³ (Lock cm³)

Cable/Receiver Storing 
 

Locked
Locked

Palm Grip: Hand Size Recommendation 
 

Palm Grip Picture  

Razer Viper Ultimate Palm Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Palm Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

Small Hand 
 

Locked

Medium Hand 
 

Locked

Large Hand 
 

Locked

X.Large Hand 
 

Locked

Claw Grip: Hand Size Recommendation 
 

Claw Grip Picture  

Razer Viper Ultimate Claw Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Claw Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

Small Hand 
 

Locked

Medium Hand 
 

Locked

Large Hand 
 

Locked

X.Large Hand 
 

Locked

Fingertip Grip: Hand Size Recommendation  
 

Fingertip Grip Picture  

Razer Viper Ultimate Fingertip Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Fingertip Grip Picture Sample

SAMPLE

Join Now

for pictures & test results

Small Hand  
 

Locked

Medium Hand 
 

Locked

Large Hand 
 

Locked

X.Large Hand  
 

Locked
Control

Main Button 
 

Actuation Graph  

Razer Viper Ultimate Actuation Graph Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Actuation Graph Sample

SAMPLE

Join Now

for pictures & test results

Force/Distances Graph  

Razer Viper Ultimate Force/Distances Graph Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Force/Distances Graph Sample

SAMPLE

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for pictures & test results

Switch Type 
 

Locked

Switch Model 
 

Locked

Additional Buttons 
 

N/A
N/A

Buttons Picture  

Razer Viper Ultimate Buttons Picture Sample

SAMPLE

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for pictures & test results

J-Tech Digital V628X Buttons Picture Sample

SAMPLE

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for pictures & test results

Buttons Activation 
 

Locked

Total Number Of Buttons 
 

Lock
Lock

Number Of Side Buttons 
 

Lock
Lock

Number Of Programmable Inputs  
 

Lock
Lock

Profile Switching Button 
 

Locked
Locked

CPI (DPI) Switching Button 
 

Locked

Gesture Support 
 

Locked
Locked

Click Latency 
 

N/A
N/A

Latency Data  

Razer Viper Ultimate Latency Data Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Latency Data Sample

SAMPLE

Join Now

for pictures & test results

Expected Connection 
 

Lock ms

Wired 
 

Lock ms
Lock ms

Receiver 
 

Lock ms
N/A

Bluetooth 
 

N/A
N/A

CPI 
 

N/A
N/A

CPI Graph  

Razer Viper Ultimate CPI Graph Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X CPI Graph Sample

SAMPLE

Join Now

for pictures & test results

SRAV Close-Up  

Razer Viper Ultimate SRAV Close-Up Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X SRAV Close-Up Sample

SAMPLE

Join Now

for pictures & test results

SRAV @ 1600 CPI 
 

Lock%

SRAV @ 800 CPI 
 

Lock%

SRAV @ 400 CPI 
 

Lock%

SRAV @ Fixed CPI 
 

N/A

Precision Error Between Speeds 
 

Lock%

Precision Error Between CPI 
 

Lock%

Worst Tracking Error 
 

Lock%

Minimum CPI 
 

Lock CPI
Lock CPI

Maximum CPI 
 

Lock CPI
Lock CPI

CPI Adjustment Steps 
 

Lock CPI
Lock CPI

Sensor Latency 
 

N/A
N/A

Sensor Latency Transition Graph  

Razer Viper Ultimate Sensor Latency Transition Graph Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Sensor Latency Transition Graph Sample

SAMPLE

Join Now

for pictures & test results

Delay To Start Of Movement 
 

Lock ms

Delay At Half Movement 
 

Lock ms

Delay To End Of Movement 
 

Lock ms

Sensor Specifications 
 

Sensor Technology 
 

Locked
Locked

Sensor Model 
 

Locked
Locked

Works On Glass 
 

Locked
Locked

Minimum CPI (DPI) 
 

Lock CPI
Lock CPI

Maximum CPI (DPI) 
 

Lock CPI
Lock CPI

CPI (DPI) Adjustment Steps 
 

Lock CPI
Lock CPI

CPI (DPI) Variation 
 

Lock%

Minimum Lift Off Distance 
 

Lock mm
Lock mm

Maximum Polling Rate 
 

Locked
Locked

Mouse Wheel 
 

Mouse wheel picture  

Razer Viper Ultimate Mouse wheel picture Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Mouse wheel picture Sample

SAMPLE

Join Now

for pictures & test results

Scroll Wheel Type 
 

Locked
Locked

Scroll Wheel Steps 
 

Locked

Scroll Wheel Tilt 
 

Locked
Locked

Thumb Wheel Type 
 

Locked
Locked

Thumb Wheel Steps 
 

Locked

Noise  

Noise Video  

Razer Viper Ultimate Noise Video Sample

SAMPLE

Join Now

for videos & test results

J-Tech Digital V628X Noise Video Sample

SAMPLE

Join Now

for videos & test results

Click Noise 
 

Locked
Locked
Operating System And Software

Configuration Software 
 

Software Tour  

Razer Viper Ultimate Software Tour Sample

SAMPLE

Join Now

for videos & test results

J-Tech Digital V628X Software Tour Sample

SAMPLE

Join Now

for videos & test results

Software Name  

Locked
Locked

Software Windows Compatibility 
 

Locked
Locked

Software macOS Compatibility 
 

Locked
Locked

On-Board Memory 
 

Locked
Locked

CPI (DPI) Adjustment  
 

Locked
Locked

Polling Rate Adjustment 
 

Locked
Locked

Profile Configuration 
 

Locked
Locked

Profile Auto-Switching 
 

Locked

Software settings screenshot  

Razer Viper Ultimate Software settings screenshot Sample

SAMPLE

Join Now

for pictures & test results

J-Tech Digital V628X Software settings screenshot Sample

SAMPLE

Join Now

for pictures & test results

RGB On/Off 
 

Locked
Locked

Account Needed 
 

Locked

Mouse Compatibility 
 

N/A
N/A

Windows Compatibility  

Locked
Locked

macOS Compatibility  

Locked
Locked

Check Price

Black
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEE PRICE
Amazon
Black (Without Charging Dock)
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEE PRICE
Walmart.com
Cyberpunk 2077
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
B&H
Mercury
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
BestBuy.com
Quartz
Viper Ultimate
SEE PRICE
Amazon
Black
V628X
SEARCH
J-Tech Digital
Back to Top

Razer Viper Ultimate

J-Tech Digital V628X

Comments

  1. Comparison
 • Posted 3 years ago

Razer Viper Ultimate vs J-Tech Digital V628X: Main Discussion

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