Products
Finalmouse UltralightX
Razer Viper V3 Pro
Tested using Methodology v1.5.1
Updated Aug 05, 2025 05:51 PM
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Tested using Methodology v1.5.1
Updated Nov 14, 2025 07:26 PM
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ConnectivityWireless
Type
Standard
Default Weight
38.0 g
Ambidextrous
Shape Only
ConnectivityWireless
Type
Standard
Default Weight
53.8 g
Ambidextrous
Shape Only
Our Verdict
Finalmouse UltralightX
Razer Viper V3 Pro
The Razer Viper V3 Pro and the Finalmouse UltralightX are lightweight, high-performance, wireless gaming mice. The Finalmouse is significantly lighter than the Razer thanks to its carbon-composite shell with honeycomb-shaped cutouts. However, the Razer has superior build quality and a more conventional design with a solid plastic shell. The two mice perform very similarly overall, but at the time of writing, the Razer supports a higher maximum polling rate of 8000Hz, whereas the Finalmouse's is only 4000Hz.
Variants
- UltralightX (Lion (M)/Guardian)
- UltralightX (Lion (M)/Phantom)
- Viper V3 Pro (Black)
- Viper V3 Pro (Faker Edition)
- Viper V3 Pro (Sentinels Edition)
- Viper V3 Pro (White)
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Lion (M)/Guardian
UltralightX
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Black
Viper V3 Pro
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Lion (M)/Phantom
UltralightX
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Faker Edition
Viper V3 Pro
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Sentinels Edition
Viper V3 Pro
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White
Viper V3 Pro
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Main Differences for
Work
Work
Threshold
Work
6.3
7.3
Additional Buttons
4.1
7.4
Build Quality
7.5
8.5
Full Comparison
Design
Style
Style Picture
Type
Standard
Standard
Coating
Matte
Matte
Lighting Color
No Lighting
No Lighting
Shape
3D Model
Length
4.8" (122 mm)
5.0" (127 mm)
Width
2.5" (63 mm)
2.5" (64 mm)
Height
1.5" (37 mm)
1.6" (40 mm)
Grip Width
58 mm
63 mm
Ambidextrous
Shape Only
Shape Only
Left-Handed Friendly
Yes
Yes
Finger Rest
No
No
Build Quality
7.5
8.5
Build quality picture
Weight
9.8
9.3
Minimum Weight Picture
Lowest Weight
38.0 g
53.8 g
Default Weight
38.0 g
53.8 g
Weight Distribution
Centered
Centered
Extra Weights
No
No
Hand Size Recommendation
Palm Grip Hand Recommendation
Claw Grip Hand Recommendation
Fingertip Grip Hand Recommendation
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
Receiver Storing
No
No
Battery Indicator
Yes
Yes
Cable
Connectivity
Wireless
Wireless
Cable Length
5.8 ft (1.8 m)
6.2 ft (1.9 m)
Cable Type
Braided
Paracord-like
Permanent Kink
Yes
Yes
Port Type: Mouse End
USB-C
USB-C
Port Type: PC End
USB-A
USB-A
Mouse Feet
9.0
9.5
Mouse Feet picture
Gliding Experience
Very Good
Very Good
Material
Virgin Grade PTFE
Virgin Grade PTFE
Extra Included
No
No
In The Box
In the box picture
Control
Main Button
Actuation Graph
Force/Distances Graph
Switch Type
Mechanical
Optical
Switch Model
Omron D2FC-F-7N(20M)
Razer Optical Mouse Switch Gen 3
Additional Buttons
4.1
7.4
Buttons Picture
Total Number Of Buttons
5
6
Number Of Side Buttons
2
2
Number Of Programmable Inputs
0
14
Profile Switching Button
No
Yes
Gesture Support
No
No
Click Latency
9.9
9.9
Latency Data
Expected Connection
1.1 ms
1.0 ms
Wired
1.2 ms
1.4 ms
Receiver
1.3 ms
1.0 ms
Bluetooth
N/A
N/A
CPI
9.6
9.7
CPI Graph
SRAV Close-Up
SRAV @ 1600 CPI
-0.11%
-0.02%
SRAV @ 800 CPI
-0.09%
-0.08%
SRAV @ 400 CPI
-0.33%
0.08%
SRAV @ Fixed CPI
N/A
N/A
Precision Error Between Speeds
0.60%
0.69%
Precision Error Between CPI
0.60%
0.69%
Worst Tracking Error
-3.25%
-3.62%
Minimum CPI
100 CPI
100 CPI
Maximum CPI
12,800 CPI
35,000 CPI
CPI Adjustment Steps
100 CPI
1 CPI
Sensor Latency
9.4
9.7
Sensor Latency Transition Graph
Delay To Start Of Movement
10.1 ms
10.7 ms
Delay At Half Movement
2.0 ms
1.4 ms
Delay To End Of Movement
2.7 ms
0.7 ms
Sensor Specifications
Sensor Technology
Optical (LED)
Optical (LED)
Sensor Model
PixArt PAW3395
Razer Focus Pro 35K
Works On Glass
No
Yes
Minimum Lift Off Distance
1.2 mm
1.2 mm
Maximum Polling Rate
8000 Hz
8000 Hz
Mouse Wheel
Mouse wheel picture
Scroll Wheel Type
Notched Wheel
Notched Wheel
Scroll Wheel Tilt
No
No
Thumb Wheel Type
No
No
Noise
Noise Video
Click Noise
Quiet
Quiet
Operating System And Software
Configuration Software
Software Tour
Software Name
XPANEL
Razer Synapse 3
Software Windows Compatibility
Yes
Yes
Software macOS Compatibility
Yes
Yes
On-Board Memory
Yes
Yes
CPI (DPI) Adjustment
Yes
Yes
Polling Rate Adjustment
Yes
Yes
Profile Configuration
No
Yes
Profile Auto-Switching
No
Yes
RGB On/Off
No RGB
No RGB
Mouse Compatibility
10
10
Windows Compatibility
Fully
Fully
macOS Compatibility
Fully
Fully
Check Price
Lion (M)/Guardian
UltralightX
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Black
Viper V3 Pro
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Lion (M)/Phantom
UltralightX
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Faker Edition
Viper V3 Pro
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Sentinels Edition
Viper V3 Pro
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White
Viper V3 Pro
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Finalmouse UltralightX
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Finalmouse UltralightX vs Razer Viper V3 Pro: Main Discussion
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