Razer Viper Ultimate vs Cobra Pro: Which Mouse Is Better?

Tested using Methodology v1.5.1

Updated Nov 17, 2025 02:47 PM

See Razer Viper Ultimate Review

ConnectivityWireless

Type Standard

Default Weight 74.9 g

Ambidextrous True Ambidextrous

ConnectivityWireless

Type Standard

Default Weight 76.7 g

Ambidextrous Shape Only

Our Verdict

Razer Viper Ultimate

Razer Cobra Pro

The Razer Cobra Pro and the Razer Viper Ultimate are wireless gaming mice with comparable high-end gaming performance and very similar shapes. Still, the Cobra Pro is noticeably smaller in size. The Cobra Pro has more extensive RGB lighting and supports Bluetooth. On the other hand, the Viper Ultimate is marginally lighter and has two side buttons on either side, while the Cobra Pro only has side buttons on the left.

Variants

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

Cobra Pro (Black)
Cobra Pro (White)

Review

See Razer Cobra Pro Review

Check Price

Black

Viper Ultimate

Black

Cobra Pro

Black (Without Charging Dock)

Viper Ultimate

White

Cobra Pro

Cyberpunk 2077

Viper Ultimate

Mercury

Viper Ultimate

Quartz

Viper Ultimate

Main Differences for

Work

Threshold

0.10

Work

6.8

7.4

Mouse Compatibility

8.3

Wireless Versatility

7.2

9.8

Full Comparison

Work

6.8

7.4

Video Games (FPS)

8.8

9.0

Video Games (MMO)

8.3

8.2

Raw Performance

9.3

9.6

Design

Style

Style Picture

Type

Standard

Coating

Matte

Lighting Color

RGB

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Shape

3D Model

Length

5.0" (127 mm)

4.7" (120 mm)

Width

2.6" (66 mm)

2.5" (63 mm)

Height

1.5" (38 mm)

Grip Width

62 mm

60 mm

Ambidextrous

True Ambidextrous

Shape Only

Left-Handed Friendly

Yes

Finger Rest

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Build Quality

8.0

Build quality picture

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Weight

7.9

Minimum Weight Picture

Lowest Weight

74.5 g

74.7 g

Default Weight

74.9 g

76.7 g

Weight Distribution

Centered

Back-heavy

Extra Weights

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Hand Size Recommendation

Palm Grip Hand Recommendation

Claw Grip Hand Recommendation

Fingertip Grip Hand Recommendation

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Wireless Versatility

7.2

9.8

Maximum Of Paired Devices

Bluetooth

Yes

Receiver

Yes

Battery Type

Rechargeable

Use When Charging

Yes

On/Off Activation

Auto Off And On/Off Switch

Receiver Extender

Yes

Receiver Storing

Yes

Battery Indicator

Yes

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Cable

Connectivity

Wireless

Cable Length

6.0 ft (1.8 m)

6.1 ft (1.9 m)

Cable Type

Paracord-like

Permanent Kink

Yes

Port Type: Mouse End

Micro USB

USB-C

Port Type: PC End

USB-A

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Mouse Feet

9.0

Mouse Feet picture

Gliding Experience

Very Good

Good

Material

Virgin Grade PTFE

Extra Included

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In The Box

In the box picture

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Control

Main Button

Actuation Graph

Force/Distances Graph

Switch Type

Optical

Switch Model

Razer Optical Mouse Switch Gen 3

Additional Buttons

8.0

7.7

Buttons Picture

Total Number Of Buttons

Number Of Side Buttons

Number Of Programmable Inputs

Profile Switching Button

Yes

Gesture Support

Show Text

Click Latency

9.3

9.4

Latency Data

Expected Connection

2.9 ms

2.8 ms

Wired

2.8 ms

Receiver

2.9 ms

2.8 ms

Bluetooth

N/A

9.0 ms

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CPI

9.8

CPI Graph

SRAV Close-Up

SRAV @ 1600 CPI

-0.11%

-0.16%

SRAV @ 800 CPI

0.04%

-0.21%

SRAV @ 400 CPI

-0.17%

-0.08%

SRAV @ Fixed CPI

N/A

Precision Error Between Speeds

0.20%

0.17%

Precision Error Between CPI

0.20%

0.18%

Worst Tracking Error

2.25%

-3.00%

Minimum CPI

100 CPI

Maximum CPI

20,000 CPI

30,000 CPI

CPI Adjustment Steps

50 CPI

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Sensor Latency

8.1

9.3

Sensor Latency Transition Graph

Delay To Start Of Movement

12.9 ms

11.4 ms

Delay At Half Movement

7.4 ms

3.0 ms

Delay To End Of Movement

9.3 ms

2.2 ms

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Sensor Specifications

Sensor Technology

Optical (LED)

Sensor Model

Focus+

Razer Focus Pro 30K

Works On Glass

Minimum Lift Off Distance

1.2 mm

Maximum Polling Rate

1000 Hz

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Mouse Wheel

Mouse wheel picture

Scroll Wheel Type

Notched Wheel

Scroll Wheel Tilt

Thumb Wheel Type

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Noise

Noise Video

Click Noise

Loud

Quiet

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Operating System And Software

Configuration Software

Software Tour

Software Name

Razer Synapse 3

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

RGB On/Off

Yes

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Mouse Compatibility

8.3

Windows Compatibility

Fully

macOS Compatibility

Partially

Fully

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Check Price

Black

Viper Ultimate

Black

Cobra Pro

Black (Without Charging Dock)

Viper Ultimate

White

Cobra Pro

Cyberpunk 2077

Viper Ultimate

Mercury

Viper Ultimate

Quartz

Viper Ultimate