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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Design
    1. Style
    2. Shape
    3. Portability
    4. Build Quality
    5. Weight
    6. Hand Size Recommendation
    7. Wireless Versatility
    8. Cable
    9. Mouse Feet
    10. In The Box
    11. Palm Grip: Hand Size Recommendation
    12. Claw Grip: Hand Size Recommendation
    13. Fingertip Grip: Hand Size Recommendation
  5. Control
    1. Main Button
    2. Additional Buttons
    3. Click Latency
    4. CPI
    5. Sensor Latency
    6. Sensor Specifications
    7. Mouse Wheel
    8. Noise
  6. Operating System And Software
    1. Configuration Software
    2. Mouse Compatibility
  7. Comments

Razer Viper Ultimate vs J-Tech Digital V628X

Side-by-Side Comparison

Products

Razer Viper Ultimate
J-Tech Digital V628X

Tested using Methodology v1.5

Updated May 02, 2024 03:51 PM

SEE PRICE
Amazon.com

Tested using Methodology v1.0

Updated Dec 10, 2021 07:01 PM

SEE PRICE
Amazon.com
Razer Viper Ultimate Picture
J-Tech Digital V628X Picture
ConnectivityWireless
Type
Standard
Default Weight
74.9 g
Ambidextrous
True Ambidextrous
ConnectivityWired
Type
Vertical
Default Weight
244 g
Ambidextrous
No

Variants

  • Viper Ultimate (Black)
  • Viper Ultimate (Black (Without Charging Dock))
  • Viper Ultimate (Cyberpunk 2077)
  • Viper Ultimate (Mercury)
  • Viper Ultimate (Quartz)
  • V628X (Black)

Review

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

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.

0 

Check Price

Black
Viper Ultimate
Searching
Finding store
Black
V628X
SEE PRICE
Amazon.com
Black (Without Charging Dock)
Viper Ultimate
Searching
Finding store
Black
V628X
SEARCH
B&H
Cyberpunk 2077
Viper Ultimate
Searching
Finding store
Black
V628X
SEARCH
Walmart.com
Mercury
Viper Ultimate
Searching
Finding store
Black
V628X
SEE PRICE
BestBuy.com
Quartz
Viper Ultimate
Searching
Finding store
 
Read more

Main Differences for
Work

Threshold 

0.10

Work 

6.8
5.8

Build Quality 
 

8.0
5.5

Wireless Versatility 
 

7.2
0.0

Number Of Programmable Inputs  
 

18
6

Additional Buttons 
 

8.0
6.7

Full Comparison

Design

Style  

Style Picture  

Razer Viper Ultimate Style Picture
J-Tech Digital V628X Style Picture

Type 
 

Standard
Vertical

Coating 
 

Matte
Matte

Lighting Color  

RGB
RGB
Show Text 

Shape  

3D Model  

Razer Viper Ultimate 3D Model
J-Tech Digital V628X 3D Model

Length  

5.0" (127 mm)
6.0" (152 mm)

Width  

2.6" (66 mm)
3.9" (100 mm)

Height  

1.5" (38 mm)
3.2" (82 mm)

Grip Width 
 

62 mm
55 mm

Ambidextrous 
 

True Ambidextrous
No

Left-Handed Friendly 
 

Yes
No

Finger Rest 
 

No
Thumb and Pinky
Show Text 

Portability 
 

7.6
1.4

Portability picture  

Razer Viper Ultimate Portability picture
J-Tech Digital V628X Portability picture

Box Volume 
 

19.47 in³ (319 cm³)
76.04 in³ (1,246 cm³)

Receiver Storing 
 

Yes
No
Show Text 

Build Quality 
 

8.0
5.5

Build quality picture  

Razer Viper Ultimate Build quality picture
J-Tech Digital V628X Build quality picture
Show Text 

Weight 
 

7.9
4.3

Minimum Weight Picture  

Razer Viper Ultimate Minimum Weight Picture

Lowest Weight 
 

74.5 g
215 g

Default Weight 
 

74.9 g
244 g

Weight Distribution 
 

Centered
Front-heavy

Extra Weights 
 

No
No

Maximum Weight Without Wire 
 

215 g
Show Text 

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

Razer Viper Ultimate Palm Grip Hand Recommendation

Claw Grip Hand Recommendation 
 

Razer Viper Ultimate Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation 
 

Razer Viper Ultimate Fingertip Grip Hand Recommendation

Right-handed 
 

Yes

Left-handed 
 

Yes
No

Ambidextrous 
 

True Ambidextrous
No

Coating 
 

Matte
Matte

Finger Rest 
 

No
Thumb and Pinky
Show Text 

Wireless Versatility 
 

7.2
0.0

Maximum Of Paired Devices 
 

1

Bluetooth 
 

No
No

Receiver 
 

Yes
No

Battery Type 
 

Rechargeable
No Batteries

Use When Charging 
 

Yes
No

On/Off Activation 
 

Auto Off And On/Off Switch
None

Receiver Extender 
 

Yes
No

Battery Indicator  

Yes
No
Show Text 

Cable 
 

8.0
6.0

Cable Video  

Connectivity  

Wireless
Wired

Cable Length 
 

6.0 ft (1.8 m)
5.9 ft (1.8 m)

Cable Type 
 

Paracord-like
Braided

Permanent Kink 
 

Yes
Yes

Port Type: Mouse End 
 

Micro USB
No Port

Port Type: PC End 
 

USB
USB
Show Text 

Mouse Feet 
 

9.0
7.0

Mouse Feet picture  

Razer Viper Ultimate Mouse Feet picture
J-Tech Digital V628X Mouse Feet picture

Gliding Experience 
 

Very Good
Ok

Material 
 

Virgin Grade PTFE
PTFE

Extra Included 
 

No
No
Show Text 

In The Box 
 

In the box picture  

Razer Viper Ultimate In the box picture
J-Tech Digital V628X In the box picture
Show Text 

Palm Grip: Hand Size Recommendation 
 

Palm Grip Picture  

J-Tech Digital V628X Palm Grip Picture

Small Hand 
 

No

Medium Hand 
 

Yes

Large Hand 
 

Yes

X.Large Hand 
 

Yes
Show Text 

Claw Grip: Hand Size Recommendation 
 

Claw Grip Picture  

J-Tech Digital V628X Claw Grip Picture

Small Hand 
 

No

Medium Hand 
 

Yes

Large Hand 
 

Yes

X.Large Hand 
 

Yes
Show Text 

Fingertip Grip: Hand Size Recommendation  
 

Fingertip Grip Picture  

J-Tech Digital V628X Fingertip Grip Picture

Small Hand  
 

No

Medium Hand 
 

No

Large Hand 
 

No

X.Large Hand  
 

No
Show Text 
Control

Main Button 
 

Actuation Graph  

See details on graph tool

Force/Distances Graph  

See details on graph tool

Switch Type 
 

Optical

Switch Model 
 

Razer Optical Mouse Switch Gen 3

Additional Buttons 
 

8.0
6.7

Buttons Picture  

Razer Viper Ultimate Buttons Picture
J-Tech Digital V628X Buttons Picture

Buttons Activation 
 

Mechanical

Total Number Of Buttons 
 

8
6

Number Of Side Buttons 
 

4
2

Number Of Programmable Inputs  
 

18
6

Profile Switching Button 
 

Yes
No

CPI (DPI) Switching Button 
 

Yes

Gesture Support 
 

No
No
Show Text 

Click Latency 
 

9.3
8.0

Latency Testing While Gaming  

Latency Data  

See details on graph tool

Expected Connection 
 

2.9 ms

Wired 
 

2.8 ms
14 ms

Receiver 
 

2.9 ms
N/A

Bluetooth 
 

N/A
N/A
Show Text 

CPI 
 

9.8

CPI Video  

CPI Graph  

See details on graph tool

SRAV Close-Up  

Razer Viper Ultimate SRAV Close-Up

SRAV @ 1600 CPI 
 

-0.11%

SRAV @ 800 CPI 
 

0.04%

SRAV @ 400 CPI 
 

-0.17%

SRAV @ Fixed CPI 
 

N/A

Precision Error Between Speeds 
 

0.20%

Precision Error Between CPI 
 

0.20%

Worst Tracking Error 
 

2.25%

Minimum CPI 
 

100 CPI
200 CPI

Maximum CPI 
 

20,000 CPI
4,000 CPI

CPI Adjustment Steps 
 

50 CPI
200 CPI

Sensor Latency 
 

8.2

Sensor Latency Demonstration  

Sensor Latency Transition Graph  

See details on graph tool

Sensor Latency CPI Graph  

See details on graph tool

Delay To Start Of Movement 
 

13.8 ms

Delay At Half Movement 
 

6.9 ms

Delay To End Of Movement 
 

8.6 ms

Sensor Specifications 
 

Sensor Technology 
 

Optical (LED)
Optical (LED)

Sensor Model 
 

Focus+
Not Specified

Works On Glass 
 

No
No

Minimum CPI (DPI) 
 

100 CPI
200 CPI

Maximum CPI (DPI) 
 

20,000 CPI
4,000 CPI

CPI (DPI) Adjustment Steps 
 

50 CPI
200 CPI

CPI (DPI) Variation 
 

-15%

Minimum Lift Off Distance 
 

1.2 mm
1.2 mm

Maximum Polling Rate 
 

1000 Hz
250 Hz
Show Text 

Mouse Wheel 
 

Mouse wheel picture  

Razer Viper Ultimate Mouse wheel picture
J-Tech Digital V628X Mouse wheel picture

Scroll Wheel Type 
 

Notched Wheel
Notched Wheel

Scroll Wheel Steps 
 

24 Steps
24 Steps

Scroll Wheel Tilt 
 

No
No

Thumb Wheel Type 
 

No
No

Thumb Wheel Steps 
 

No Thumb Wheel
No Thumb Wheel
Show Text 

Noise  

Noise Video  

Click Noise 
 

Loud
Loud
Show Text 
Operating System And Software

Configuration Software 
 

Software Tour  

Software Name  

Razer Synapse 3
M618X Mouse Driver

Software Windows Compatibility 
 

Yes
Yes

Software macOS Compatibility 
 

No
No

On-Board Memory 
 

Yes
Yes

CPI (DPI) Adjustment  
 

Yes
Yes

Polling Rate Adjustment 
 

Yes
No

Profile Configuration 
 

Yes
No

Profile Auto-Switching 
 

Yes

Software settings screenshot  

J-Tech Digital V628X Software settings screenshot

RGB On/Off 
 

Yes
Yes

Account Needed 
 

No
Show Text 

Mouse Compatibility 
 

8.3
8.3

Windows Compatibility  

Fully
Fully

macOS Compatibility  

Partially
Partially
Show Text 

Check Price

Black
Viper Ultimate
Searching
Finding store
Black
V628X
SEE PRICE
Amazon.com
Black (Without Charging Dock)
Viper Ultimate
Searching
Finding store
Black
V628X
SEARCH
B&H
Cyberpunk 2077
Viper Ultimate
Searching
Finding store
Black
V628X
SEARCH
Walmart.com
Mercury
Viper Ultimate
Searching
Finding store
Black
V628X
SEE PRICE
BestBuy.com
Quartz
Viper Ultimate
Searching
Finding store
 
Back to Top

Razer Viper Ultimate

J-Tech Digital V628X

Comments

  1. Comparison
 • Posted 1 year ago

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

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