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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
  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 Logitech G703 LIGHTSPEED with HERO Sensor

Side-by-Side Comparison

Products

Razer Viper Ultimate
Logitech G703 LIGHTSPEED with HERO Sensor

Tested using Methodology v1.5

Updated May 02, 2024 03:51 PM

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Tested using Methodology v1.5

Updated Jan 27, 2025 07:01 PM

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BestBuy.com
Razer Viper Ultimate Picture
Logitech G703 LIGHTSPEED with HERO Sensor Picture

Variants

  • Viper Ultimate (Black)
  • Viper Ultimate (Black (Without Charging Dock))
  • Viper Ultimate (Cyberpunk 2077)
  • Viper Ultimate (Mercury)
  • Viper Ultimate (Quartz)
  • G703 LIGHTSPEED with HERO Sensor (Black)

Our Verdict

Razer Viper Ultimate

Logitech G703 LIGHTSPEED with HERO Sensor

The Razer Viper Ultimate is slightly better than the Logitech G703 LIGHTSPEED with HERO Sensor. The Razer is lighter, more comfortable to use, and has more programmable inputs. However, the Logitech has a lower CPI variation and software support for macOS.

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Black
Viper Ultimate
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Black
G703 LIGHTSPEED with HERO Sensor
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Black (Without Charging Dock)
Viper Ultimate
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Cyberpunk 2077
Viper Ultimate
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Mercury
Viper Ultimate
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Quartz
Viper Ultimate
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Main Differences for

Threshold 

0.10

Work 

6.8
7.2

Mouse Compatibility 
 

8.3
10

Build Quality 
 

8.0
8.5

Additional Buttons 
 

8.0
7.3

Full Comparison

Design

Style  

Style Picture  

Razer Viper Ultimate Style Picture
Logitech G703 LIGHTSPEED with HERO Sensor Style Picture

Type 
 

Standard
Standard

Coating 
 

Matte
Matte

Lighting Color  

RGB
RGB

Show text

Shape  

3D Model  

Razer Viper Ultimate 3D Model
Logitech G703 LIGHTSPEED with HERO Sensor 3D Model

Length  

5.0" (127 mm)
4.9" (125 mm)

Width  

2.6" (66 mm)
2.6" (65 mm)

Height  

1.5" (38 mm)
1.7" (43 mm)

Grip Width 
 

62 mm
62 mm

Ambidextrous 
 

True Ambidextrous
No

Left-Handed Friendly 
 

Yes
No

Finger Rest 
 

No
No

Show text

Portability 
 

7.6
5.5

Portability picture  

Razer Viper Ultimate Portability picture
Logitech G703 LIGHTSPEED with HERO Sensor Portability picture

Box Volume 
 

19.47 in³ (319 cm³)
21.42 in³ (351 cm³)

Receiver Storing 
 

Yes
No

Show text

Build Quality 
 

8.0
8.5

Build quality picture  

Razer Viper Ultimate Build quality picture
Logitech G703 LIGHTSPEED with HERO Sensor Build quality picture

Show text

Weight 
 

7.9
6.4

Minimum Weight Picture  

Razer Viper Ultimate Minimum Weight Picture
Logitech G703 LIGHTSPEED with HERO Sensor Minimum Weight Picture

Lowest Weight 
 

74.5 g
92.6 g

Default Weight 
 

74.9 g
105.3 g

Weight Distribution 
 

Centered
Centered

Extra Weights 
 

No
Yes

Show text

Hand Size Recommendation 
 

Palm Grip Hand Recommendation 
 

Razer Viper Ultimate Palm Grip Hand Recommendation
Logitech G703 LIGHTSPEED with HERO Sensor Palm Grip Hand Recommendation

Claw Grip Hand Recommendation 
 

Razer Viper Ultimate Claw Grip Hand Recommendation
Logitech G703 LIGHTSPEED with HERO Sensor Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation 
 

Razer Viper Ultimate Fingertip Grip Hand Recommendation
Logitech G703 LIGHTSPEED with HERO Sensor Fingertip Grip Hand Recommendation

Show text

Wireless Versatility 
 

7.2
7.2

Maximum Of Paired Devices 
 

1
1

Bluetooth 
 

No
No

Receiver 
 

Yes
Yes

Battery Type 
 

Rechargeable
Rechargeable

Use When Charging 
 

Yes
Yes

On/Off Activation 
 

Auto Off And On/Off Switch
Auto Off And On/Off Switch

Receiver Extender 
 

Yes
Yes

Battery Indicator  

Yes
Yes

Show text

Cable 
 

8.0
8.0

Cable Video  

Connectivity  

Wireless
Wireless

Cable Length 
 

6.0 ft (1.8 m)
6.2 ft (1.9 m)

Cable Type 
 

Paracord-like
Braided

Permanent Kink 
 

Yes
No

Port Type: Mouse End 
 

Micro USB
Micro USB

Port Type: PC End 
 

USB
USB

Show text

Mouse Feet 
 

9.0
7.5

Mouse Feet picture  

Razer Viper Ultimate Mouse Feet picture
Logitech G703 LIGHTSPEED with HERO Sensor 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
Logitech G703 LIGHTSPEED with HERO Sensor In the box picture

Show text

Control

Main Button 
 

Actuation Graph  

See details on graph tool
See details on graph tool

Force/Distances Graph  

See details on graph tool
See details on graph tool

Switch Type 
 

Optical
Mechanical

Switch Model 
 

Razer Optical Mouse Switch Gen 3
Not Specified

Additional Buttons 
 

8.0
7.3

Buttons Picture  

Razer Viper Ultimate Buttons Picture
Logitech G703 LIGHTSPEED with HERO Sensor Buttons Picture

Total Number Of Buttons 
 

8
6

Number Of Side Buttons 
 

4
2

Number Of Programmable Inputs  
 

18
11

Profile Switching Button 
 

Yes
Yes

Gesture Support 
 

No
No

Show text

Click Latency 
 

9.3
8.7

Latency Testing While Gaming  

Latency Data  

See details on graph tool
See details on graph tool

Expected Connection 
 

2.9 ms
5.2 ms

Wired 
 

2.8 ms
4.1 ms

Receiver 
 

2.9 ms
5.2 ms

Bluetooth 
 

N/A
N/A

Show text

CPI 
 

9.8
9.1

CPI Video  

CPI Graph  

See details on graph tool
See details on graph tool

SRAV Close-Up  

Razer Viper Ultimate SRAV Close-Up
Logitech G703 LIGHTSPEED with HERO Sensor SRAV Close-Up

SRAV @ 1600 CPI 
 

-0.11%
0.17%

SRAV @ 800 CPI 
 

0.04%
0.12%

SRAV @ 400 CPI 
 

-0.17%
0.33%

SRAV @ Fixed CPI 
 

N/A
N/A

Precision Error Between Speeds 
 

0.20%
0.31%

Precision Error Between CPI 
 

0.20%
0.33%

Worst Tracking Error 
 

2.25%
-7.75%

Minimum CPI 
 

100 CPI
100 CPI

Maximum CPI 
 

20,000 CPI
25,600 CPI

CPI Adjustment Steps 
 

50 CPI
50 CPI

Sensor Latency 
 

8.2
8.7

Sensor Latency Demonstration  

Sensor Latency Transition Graph  

See details on graph tool
See details on graph tool

Sensor Latency CPI Graph  

See details on graph tool
See details on graph tool

Delay To Start Of Movement 
 

13.8 ms
14.1 ms

Delay At Half Movement 
 

6.9 ms
4.5 ms

Delay To End Of Movement 
 

8.6 ms
6.0 ms

Sensor Specifications 
 

Sensor Technology 
 

Optical (LED)
Optical (LED)

Sensor Model 
 

Focus+
HERO 25K

Works On Glass 
 

No
No

Minimum Lift Off Distance 
 

1.2 mm
1.2 mm

Maximum Polling Rate 
 

1000 Hz
1000 Hz

Show text

Mouse Wheel 
 

Mouse wheel picture  

Razer Viper Ultimate Mouse wheel picture
Logitech G703 LIGHTSPEED with HERO Sensor 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
Quiet

Show text

Operating System And Software

Configuration Software 
 

Software Tour  

Software Name  

Razer Synapse 3
Logitech G HUB

Software Windows Compatibility 
 

Yes
Yes

Software macOS Compatibility 
 

No
Yes

On-Board Memory 
 

Yes
Yes

CPI (DPI) Adjustment  
 

Yes
Yes

Polling Rate Adjustment 
 

Yes
Yes

Profile Configuration 
 

Yes
Yes

Profile Auto-Switching 
 

Yes
Yes

RGB On/Off 
 

Yes
Yes

Show text

Mouse Compatibility 
 

8.3
10

Windows Compatibility  

Fully
Fully

macOS Compatibility  

Partially
Fully

Show text

Check Price

Black
Viper Ultimate
Searching
Finding store
Black
G703 LIGHTSPEED with HERO Sensor
SEE PRICE
BestBuy.com
Black (Without Charging Dock)
Viper Ultimate
Searching
Finding store
 
Cyberpunk 2077
Viper Ultimate
Searching
Finding store
 
Mercury
Viper Ultimate
Searching
Finding store
 
Quartz
Viper Ultimate
Searching
Finding store
 

Razer Viper Ultimate

Logitech G703 LIGHTSPEED with HERO Sensor

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Razer Viper Ultimate vs Logitech G703 LIGHTSPEED with HERO Sensor: Main Discussion

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