Razer Viper Ultimate vs Logitech G903 HERO Side-by-Side Mouse Comparison

Tested using Methodology v1.2

Updated Nov 16, 2023 05:59 PM

See Razer Viper Ultimate Review

ConnectivityWireless

TypeStandard

Default Weight74.9 g

AmbidextrousTrue Ambidextrous

ConnectivityWireless

TypeStandard

Default Weight119.8 g

AmbidextrousYes

Variants

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

G903 HERO (Black)

Review

See Logitech G903 HERO Review

Our Verdict

Razer Viper Ultimate

Logitech G903 HERO

The Razer Viper Ultimate is better for most uses than the Logitech G903 HERO. The Razer has slightly lower click latency, is more comfortable, and has much better feet, so it glides better. However, the Logitech has a higher max CPI, less CPI variation, and the G HUB software is available on macOS, while the Razer Synapse 3 software isn't.

Check Price

Black

Viper Ultimate

Black

G903 HERO

Black (Without Charging Dock)

Viper Ultimate

Black

G903 HERO

Walmart.com

Cyberpunk 2077

Viper Ultimate

Black

G903 HERO

B&H

Mercury

Viper Ultimate

Quartz

Viper Ultimate

Notice: Two or more of the products selected have been tested with different test methodologies, so some of the results below aren't directly comparable. Learn how our test benches and scoring system work, and read more about the latest changes to our mice test methodology.

Threshold

0.10

Work

6.8

8.2

Scroll Wheel Type

Notched Wheel

Notched Wheel + Free Wheel

Mouse Compatibility

8.3

Additional Buttons

8.0

8.6

Full Comparison

Work

6.8

8.2

Video Games (FPS)

8.8

8.2

Video Games (MMO)

8.3

8.6

Ultra-Light Gaming

7.1

Travel

6.9

Raw Performance

9.3

Design

Style

Style Picture

Type

Standard

Coating

Matte

Lighting Color

RGB

Show Text

Shape

3D Model

Length

5.0" (127 mm)

5.1" (130 mm)

Width

2.6" (66 mm)

2.6" (65 mm)

Height

1.5" (38 mm)

1.6" (40 mm)

Grip Width

62 mm

61 mm

Ambidextrous

True Ambidextrous

Yes

Left-Handed Friendly

Yes

Finger Rest

Show Text

Portability

7.6

5.6

Portability picture

Box Volume

19.47 in³ (319 cm³)

20.08 in³ (329 cm³)

Receiver Storing

Yes

Show Text

Build Quality

8.0

Build quality picture

Show Text

Weight

7.9

5.7

Minimum Weight Picture

Lowest Weight

74.5 g

109.7 g

Default Weight

74.9 g

119.8 g

Weight Distribution

Centered

Front-heavy

Extra Weights

Yes

Show Text

Hand Size Recommendation

Palm Grip Hand Recommendation

Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation

Right-handed

Left-handed

Yes

Ambidextrous

True Ambidextrous

Yes

Coating

Matte

Finger Rest

Show Text

Wireless Versatility

7.2

7.0

Maximum Of Paired Devices

Bluetooth

Receiver

Yes

Battery Type

Rechargeable

Use When Charging

Yes

On/Off Activation

Auto Off And On/Off Switch

Receiver Extender

Yes

Battery Indicator

Yes

Show Text

Palm Grip: Hand Size Recommendation

Palm Grip Picture

Small Hand

Yes

Medium Hand

Yes

Large Hand

Yes

X.Large Hand

Yes

Show Text

Cable

8.0

Cable Video

Connectivity

Wireless

Cable Length

6.0 ft (1.8 m)

6.1 ft (1.9 m)

Cable Type

Paracord-like

Braided

Permanent Kink

Yes

Port Type: Mouse End

Micro USB

Port Type: PC End

USB

Show Text

Claw Grip: Hand Size Recommendation

Claw Grip Picture

Small Hand

Yes

Medium Hand

Yes

Large Hand

Yes

X.Large Hand

Yes

Show Text

Fingertip Grip: Hand Size Recommendation

Fingertip Grip Picture

Small Hand

Medium Hand

Yes

Large Hand

Yes

X.Large Hand

Yes

Show Text

Mouse Feet

9.0

7.5

Mouse Feet picture

Gliding Experience

Very Good

Good

Material

Virgin Grade PTFE

PTFE

Extra Included

Show Text

In The Box

In the box picture

Show Text

Control

Main Button

Actuation Graph

Force/Distances Graph

Switch Type

Optical

Switch Model

Razer Optical Mouse Switch Gen 3

Additional Buttons

8.0

8.6

Buttons Picture

Buttons Activation

Mechanical

Total Number Of Buttons

Number Of Side Buttons

Number Of Programmable Inputs

Profile Switching Button

Yes

CPI (DPI) Switching Button

Yes

Gesture Support

Show Text

Click Latency

9.3

8.8

Latency Testing While Gaming

Latency Data

Expected Connection

2.9 ms

4.8 ms

Wired

2.8 ms

3.8 ms

Receiver

2.9 ms

4.8 ms

Bluetooth

N/A

Show Text

CPI

9.8

9.9

CPI Video

CPI Graph

SRAV Close-Up

SRAV @ 1600 CPI

-0.11%

-0.04%

SRAV @ 800 CPI

0.04%

-0.05%

SRAV @ 400 CPI

-0.17%

-0.08%

SRAV @ Fixed CPI

N/A

Precision Error Between Speeds

0.20%

0.18%

Precision Error Between CPI

0.20%

0.18%

Worst Tracking Error

2.25%

-2.50%

Minimum CPI

100 CPI

Maximum CPI

20,000 CPI

25,600 CPI

CPI Adjustment Steps

50 CPI

Sensor Latency

8.2

Sensor Latency Demonstration

Sensor Latency Transition Graph

Sensor Latency CPI Graph

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)

Sensor Model

Focus+

HERO 25K

Works On Glass

Minimum Lift Off Distance

1.2 mm

Maximum Polling Rate

1000 Hz

Show Text

Mouse Wheel

Mouse wheel picture

Scroll Wheel Type

Notched Wheel

Notched Wheel + Free Wheel

Scroll Wheel Steps

24 Steps

Scroll Wheel Tilt

Yes

Thumb Wheel Type

Thumb Wheel Steps

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

Software macOS Compatibility

Yes

On-Board Memory

Yes

CPI (DPI) Adjustment

Yes

Polling Rate Adjustment

Yes

Profile Configuration

Yes

Profile Auto-Switching

Yes

Software settings screenshot

RGB On/Off

Yes

Account Needed

Show Text

Mouse Compatibility

8.3

Windows Compatibility

Fully

macOS Compatibility

Partially

Fully

Show Text

Check Price

Black

Viper Ultimate

Black

G903 HERO

Black (Without Charging Dock)

Viper Ultimate

Black

G903 HERO

Walmart.com

Cyberpunk 2077

Viper Ultimate

Black

G903 HERO

B&H

Mercury

Viper Ultimate

Quartz

Viper Ultimate