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  1. Home
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  3. Compare

GravaStar Mercury X Pro vs Razer Viper V4 Pro

Which Mouse Is Better?

    Top
    Main Differences
    Design
      StyleShapeBuild QualityWeightHand Size RecommendationWireless VersatilityCableMouse FeetIn The Box
    Control
      Main ButtonAdditional ButtonsClick LatencyCPISensor LatencySensor SpecificationsMouse WheelNoise
    Operating System And Software
      Configuration SoftwareMouse Compatibility
    Comments

Products

GravaStar Mercury X Pro 
early access
Razer Viper V4 Pro

Tested using Methodology v1.5.2

Updated May 27, 2026 04:53 PM

This review is in Early access

SEE PRICE
Amazon

Tested using Methodology v1.5.2

Updated Jun 10, 2026 03:24 PM

SEE PRICE
Amazon
GravaStar Mercury X Pro Picture

Track

Razer Viper V4 Pro Picture

Track

ConnectivityWireless
Type
Standard
Default Weight
51.5 g
Ambidextrous
Shape Only
ConnectivityWireless
Type
Standard
Default Weight
48.9 g
Ambidextrous
Shape Only
  1. Recommended in 4 articles:
  2. Gaming
  3. Wireless Gaming
  4. Lightweight
  5. 1

Our Verdict

GravaStar Mercury X Pro

Razer Viper V4 Pro

Full comparison details regarding individual product score sets can be found in the section below

GIFT THIS COMPARISON

0 

Variants

  • Mercury X Pro (Galaxy Black)
  • Mercury X Pro (Interstellar Silver)
  • Viper V4 Pro (Black)
  • Viper V4 Pro (White)

Review

See GravaStar Mercury X Pro Review
See Razer Viper V4 Pro Review
0 
17 

Check Price

Galaxy Black
Mercury X Pro
SEE PRICE
Amazon
Black
Viper V4 Pro
SEE PRICE
Amazon
Interstellar Silver
Mercury X Pro
SEE PRICE
Amazon
White
Viper V4 Pro
SEE PRICE
Amazon

Main Differences for
Work

Threshold 

0.10

Work 
 

0.0
0.0
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Full Comparison

Design

Style  

Style Picture  

GravaStar Mercury X Pro Style Picture Sample

SAMPLE

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for pictures & test results

Razer Viper V4 Pro Style Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Type 
 

Locked
Locked

Coating 
 

Locked
Locked

Lighting Color  

Locked
Locked

Shape  

3D Model  

GravaStar Mercury X Pro 3D Model Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro 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  

GravaStar Mercury X Pro Build quality picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Build quality picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Weight 
 

N/A
N/A

Minimum Weight Picture  

GravaStar Mercury X Pro Minimum Weight Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Minimum Weight Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Lowest Weight 
 

Lock g
Lock g

Default Weight 
 

Lock g
Lock g

Weight Distribution 
 

Locked
Locked

Extra Weights 
 

Locked
Locked

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

GravaStar Mercury X Pro Palm Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Palm Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Claw Grip Hand Recommendation 
 

GravaStar Mercury X Pro Claw Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Claw Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Fingertip Grip Hand Recommendation 
 

GravaStar Mercury X Pro Fingertip Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Fingertip Grip Hand Recommendation Sample

SAMPLE

JOIN NOW

for pictures & test results

Wireless Versatility 
 

N/A
N/A

Maximum Of Paired Devices 
 

Locked
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 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  

GravaStar Mercury X Pro Mouse Feet picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Mouse Feet picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Gliding Experience 
 

Locked
Locked

Material 
 

Locked
Locked

Extra Included 
 

Locked
Locked

In The Box 
 

In the box picture  

GravaStar Mercury X Pro In the box picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro In the box picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Control

Main Button 
 

Actuation Graph  

GravaStar Mercury X Pro Actuation Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Actuation Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Force/Distances Graph  

GravaStar Mercury X Pro Force/Distances Graph Sample

SAMPLE

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for pictures & test results

Razer Viper V4 Pro Force/Distances Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Switch Type 
 

Locked
Locked

Switch Model 
 

Locked
Locked

Additional Buttons 
 

N/A
N/A

Buttons Picture  

GravaStar Mercury X Pro Buttons Picture Sample

SAMPLE

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for pictures & test results

Razer Viper V4 Pro Buttons Picture Sample

SAMPLE

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for pictures & test results

Total Number Of Buttons 
 

Lock
Lock

Number Of Side Buttons 
 

Lock
Lock

Number Of Programmable Inputs  
 

Lock
Lock

Profile Switching Button 
 

Locked
Locked

Gesture Support 
 

Locked
Locked

Click Latency 
 

N/A
N/A

Latency Data  

GravaStar Mercury X Pro Latency Data Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Latency Data Sample

SAMPLE

JOIN NOW

for pictures & test results

Expected Connection 
 

Lock ms
Lock ms

Wired 
 

Lock ms
Lock ms

Receiver 
 

Lock ms
Lock ms

Bluetooth 
 

Lock ms
N/A

CPI 
 

N/A
N/A

CPI Graph  

GravaStar Mercury X Pro CPI Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro CPI Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

SRAV Close-Up  

GravaStar Mercury X Pro SRAV Close-Up Sample

SAMPLE

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for pictures & test results

Razer Viper V4 Pro SRAV Close-Up Sample

SAMPLE

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for pictures & test results

SRAV @ 1600 CPI 
 

Lock%
Lock%

SRAV @ 800 CPI 
 

Lock%
Lock%

SRAV @ 400 CPI 
 

Lock%
Lock%

SRAV @ Fixed CPI 
 

N/A
N/A

Precision Error Between Speeds 
 

Lock%
Lock%

Precision Error Between CPI 
 

Lock%
Lock%

Worst Tracking Error 
 

Lock%
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  

GravaStar Mercury X Pro Sensor Latency Transition Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Sensor Latency Transition Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Delay At Half Movement 
 

Lock ms
Lock ms

Sensor Specifications 
 

Sensor Technology 
 

Locked
Locked

Sensor Model 
 

Locked
Locked

Works On Glass 
 

Locked
Locked

Minimum Lift Off Distance 
 

Lock mm
Lock mm

Maximum Polling Rate 
 

Locked
Locked

Mouse Wheel 
 

Mouse wheel picture  

GravaStar Mercury X Pro Mouse wheel picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Razer Viper V4 Pro Mouse wheel picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Scroll Wheel Type 
 

Locked
Locked

Scroll Wheel Tilt 
 

Locked
Locked

Thumb Wheel Type 
 

Locked
Locked

Noise  

Noise Video  

GravaStar Mercury X Pro Noise Video Sample

SAMPLE

JOIN NOW

for videos & test results

Razer Viper V4 Pro Noise Video Sample

SAMPLE

JOIN NOW

for videos & test results

Click Noise 
 

Locked
Locked
Operating System And Software

Configuration Software 
 

Software Tour  

GravaStar Mercury X Pro Software Tour Sample

SAMPLE

JOIN NOW

for videos & test results

Razer Viper V4 Pro 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
Locked

RGB On/Off 
 

Locked
Locked

Mouse Compatibility 
 

N/A
N/A

Windows Compatibility  

Locked
Locked

macOS Compatibility  

Locked
Locked

Check Price

Galaxy Black
Mercury X Pro
SEE PRICE
Amazon
Black
Viper V4 Pro
SEE PRICE
Amazon
Interstellar Silver
Mercury X Pro
SEE PRICE
Amazon
White
Viper V4 Pro
SEE PRICE
Amazon
Back to Top

GravaStar Mercury X Pro

Razer Viper V4 Pro

Comments

  1. Comparison
 • Posted 1 hour ago

GravaStar Mercury X Pro vs Razer Viper V4 Pro: Main Discussion

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