Get insider access
Preferred store
Your browser is not supported or outdated so some features of the site might not be available.

Finalmouse UltralightX Competition Mouse Review

Tested using Methodology v1.5
Reviewed Jan 23, 2025 at 11:07 am
Finalmouse UltralightX Competition Picture
6.1
Work
9.3
Video Games (FPS)
6.6
Video Games (MMO)
9.5
Raw Performance

The Finalmouse UltralightX Competition is a lightweight wireless gaming mouse and a limited-edition version in the wider Finalmouse UltralightX family. Internally, these mice all share virtually the same components, but this version has an upgraded scroll wheel encoder and has solid instead of honeycomb sides. It supports a new 'Tournament Scroll' software option which allows you to filter out your first scroll wheel up/down inputs. This is helpful if you have your mouse wheel bound to common inputs like jump and often experience accidental inputs. However, this software feature is also now supported on other versions in the UltralightX family and isn't exclusive to this version. For more details about this feature, see the Configuration Software section.

You can buy this mouse in three sizes: small, medium, and classic (large). These are the same sizes and shapes as other models in the UltralightX family. We bought and tested the medium-size variant. For more details, see the Differences Between Variants section.

Our Verdict

6.1 Work

The Finalmouse UltralightX Competition is acceptable for work but isn't designed explicitly for this usage. That said, it's very lightweight and has a comfortable symmetrical shape. Unfortunately, its carbon fiber body design feels a bit flimsy, and it pops and creaks if you apply enough pressure into the honeycomb surfaces. It connects wirelessly with its USB receiver, but it doesn't support Bluetooth or multi-device pairing. And while it has a web-based configurator, you can't remap buttons without third-party software. Lastly, the scroll lacks helpful productivity features like L/R tilt inputs and free scrolling.

Pros
  • Connects wirelessly with its 2.4GHz receiver.

  • Remarkably lightweight; less fatiguing to use for long stretches compared to heavier productivity mice.

Cons
  • Carbon fiber body creaks, pops, and flexes noticeably.

  • Can't reprogram buttons without third party software.

  • Doesn't support Bluetooth; no multi-device pairing.

9.3 Video Games (FPS)

The Finalmouse UltralightX Competition is a remarkable FPS gaming mouse. Its extremely lightweight design makes it easy to move quickly and accurately. It also has incredibly low and consistent click latency and outstanding all-around sensor performance that's more than suitable for gaming at any competitive level. Unfortunately, its carbon fiber composite body suffers from build quality problems, and it pops and creaks noticeably if you apply a moderate amount of pressure into areas of the body with honeycomb cutouts.

Pros
  • Extremely lightweight.

  • Maximum wireless polling rate of 8000Hz.

  • Incredibly low and consistent click latency.

  • Outstanding sensor latency performance.

Cons
  • Carbon fiber body creaks, pops, and flexes noticeably.

6.6 Video Games (MMO)

The Finalmouse UltralightX Competition is okay for MMO gaming but has fewer side buttons than a dedicated MMO gaming mouse, and you can't remap buttons without third-party software. That said, it's exceptionally lightweight, has incredibly low and consistent click latency, and has outstanding sensor performance, providing an exceptionally responsive-feeling in-game experience. Unfortunately, it also suffers from build quality issues like popping and noticeable creaking when you apply moderate pressure into the sides.

Pros
  • Incredibly low and consistent click latency.

  • Outstanding sensor latency performance.

Cons
  • Carbon fiber body creaks, pops, and flexes noticeably.

  • Can't reprogram buttons without third party software.

  • Significantly fewer side buttons compared to dedicated MMO gaming mice.

9.5 Raw Performance

The Finalmouse UltralightX Competition delivers superb raw performance. Its click latency is incredibly low, and the sensor latency and accuracy are outstanding. This mouse also supports a maximum wireless polling rate of 8000Hz, delivering slightly better and more consistent overall performance over a standard 1000Hz polling rate. However, using higher polling rates also requires considerable CPU resources and consumes battery power much more quickly.

Pros
  • Incredibly low and consistent click latency.

  • Outstanding sensor latency performance.

Cons
  • 6.1 Work
  • 9.3 Video Games (FPS)
  • 6.6 Video Games (MMO)
  • 9.5 Raw Performance
  1. Updated Jan 23, 2025: Review published.
  2. Updated Jan 20, 2025: Early access published.
  3. Updated Jan 10, 2025: Our testers have started testing this product.
  4. Updated Jan 07, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.
  5. Updated Oct 22, 2024: We've purchased the product and are waiting for it to arrive in our lab.

Differences Between Sizes And Variants

The Finalmouse UltralightX Competition is available in three sizes and only in a dark gray colorway. We bought and tested the medium-size variant. You can see an image of our unit's label here. The label is mostly obscured because it's on the inside of the mouse and partially blocked by the honeycomb body. The serial number indicated on the PCB is MA243502060. Our unit's model number is 02727 / 10,000.

NameAdvertised WeightAdvertised Dimensions
UltralightX Competition (Small)33g115.6 mm Length x 54.1mm Grip Width x 35.2mm Height
UltralightX Competition (Medium)37g121.3 mm Length x 56.8 mm Grip Width x 37 mm Height
UltralightX Competition (Classic/Large)38g126 mm Length x 59 mm Grip Width x 38.4 mm Height

We expect our test results to apply to all variants, with the obvious exception of shape- or weight-related tests.

Compared To Other Mice

The Finalmouse UltralightX Competition is a limited-edition model in the Finalmouse UltralightX family. It shares the same shape, dimensions, and lightweight carbon fiber composite body as earlier models but now features solid sides instead of honeycomb cutouts, which improves comfort somewhat. It has the same internal components as the Finalmouse ULX Pro Series but now uses a TTC Gold 'dustproof' scroll wheel encoder, generally known for better tactility and reliability compared to the unspecified Kailh encoders in previous versions. This new release also supports the 'Tournament Scroll' software feature, though this feature is also now supported by earlier UltralightX versions. This feature allows you to add a small delay to filter out early scroll wheel inputs, which can reduce the chance of accidental inputs.

Unfortunately, while the UltralightX Competition delivers exceptional performance in a lightweight design, it suffers from persistent build quality issues between units. It was also released as a single-batch drop, so it's no longer available to buy—except through third-party resellers at inflated prices. Ultimately, this mouse doesn't offer a significant improvement over the base model Finalmouse UltralightX unless you're particularly interested in the new solid sides or its minor scroll wheel improvement. It doesn't offer meaningfully better performance or build quality over less expensive and much more readily available ultralight models like the WLmouse Beast X Max or even cheaper models like the Scyrox V8 or the Ninjutso Sora V2.

For more recommendations, see our picks for the best gaming mice, the best wireless mice, or the best lightweight mouse.

Logitech G PRO X SUPERLIGHT 2

The Finalmouse UltralightX Competition and the Logitech G PRO X SUPERLIGHT 2 are high-end wireless gaming mice. The Finalmouse has a carbon fiber composite body design with honeycomb cutouts and is significantly lighter. Unfortunately, it also suffers from inconsistent quality control, and we experienced noticeable creaking, popping, and flexibility on our unit. Comparatively, the Logitech isn't quite as lightweight and has a relatively more ordinary solid plastic body. Its build quality is also better and much more consistent.

Finalmouse UltralightX

The Finalmouse UltralightX Competition and the Finalmouse UltralightX are wireless gaming mice in the same family. Both mice are extremely lightweight and have nearly identical performance. The UltralightX Competition is newer and has minor changes including solid side panels instead of honeycomb side panels and a higher-quality scroll wheel encoder. Unfortunately, both mice suffer from inconsistent quality control and potential build quality issues. We experienced a mushy and inconsistent button feel on the baseline UltralightX and flexibility, creaking, and popping in the body of the UltralightX Competition.

WLmouse Beast X Max

The WLmouse Beast X Max and the Finalmouse UltralightX Competition are lightweight wireless gaming mice with comparable raw gaming performance. The WLmouse has better build quality with a magnesium alloy exoskeleton shell, but it has large cutouts on the top and sides that some may find make it less comfortable. On the other hand, the Finalmouse has a carbon fiber composite top shell and only has small honeycomb cutouts on the top and underside, making it more comfortable to hold for most people. Unfortunately, the build quality is inconsistent, and we experienced noticeable flexibility, creaking, and popping on the body of the unit we tested. The WLmouse is also available in a wide range of expressive colorways, while the Finalmouse is only available in a monotone dark gray colorway.

Finalmouse ULX Pro Series

The Finalmouse UltralightX Competition and the Finalmouse ULX Pro Series are very similar, limited edition versions in the same lineup. Both versions have a composite carbon fiber body with weight-saving honeycomb cutouts on the top and bottom. The UltralightX Competition has solid sides while the ULX Pro Series has cutouts on its sides. The UltralightX Competition has a slightly higher-quality scroll wheel encoder and only comes in a dark gray colorway, while the ULX Pro Series has several two-tone colorway options. Unfortunately, both have somewhat inconsistent build quality. We experienced a mushy button feel on the ULX Pro Series we tested and noticeable flexibility, popping, and creaking in the body of the UltralightX Competition we tested.

Test Results

perceptual testing image
Design
Design
Style
Type
Standard
Coating
Matte
Lighting Color No Lighting

The Finalmouse UltralightX Competition has a carbon fiber composite top shell with weight-saving honeycomb cutouts on the top and underside. However, the side panels are solid and don't have honeycomb holes, which sets this version apart from earlier models in the Finalmouse UltralightX family.

The front and bottom of the mouse don't appear to be made of the same carbon fiber composite. These sections have a glossy texture and feel like ordinary ABS plastic.

The entire mouse is a dark grey color. This version doesn't have other colorway options available.

The main click buttons have engraved linework patterns, and the right side has a light gray 'Competition' logo printed on it.

Design
Shape
Length 4.8" (121 mm)
Width 2.5" (63 mm)
Height 1.5" (37 mm)
Grip Width
57 mm
Ambidextrous
Shape Only
Left-Handed Friendly
Yes
Finger Rest
No

Note: The 3D scanning tool has difficulty accurately capturing depth inside this mouse's honeycomb body. As a result, the scan displays a blurry texture layer inside the mouse. That said, the scale and dimensions of this scan are still accurate and aren't affected by this minor visual error.

5.8
Design
Portability
Box Volume
17.09 in³ (280 cm³)
Receiver Storing
No

The Finalmouse UltralightX Competition isn't designed specifically for portability. While it isn't very big, it's somewhat bulky and lacks a compartment for storing its USB receiver. Additionally, its honeycomb design leaves the interior more open to collecting dust and debris.

7.0
Design
Build Quality

The overall build quality is only satisfactory. This mouse's top body is made of carbon fiber composite. It has a pleasant smooth coating that doesn't feel too slippery. However, the front and underside of the mouse don't appear to be made of the same carbon fiber material. Rather, it looks and feels like standard ABS plastic with a glossy finish.

Unfortunately, the unit we tested has major flexibility issues, notably on the bottom panel which flexes inwards and can make the side panels pop with enough pressure. Pushing directly into areas of the body with honeycomb cutouts makes the mouse creak and pop very noticeably, and it feels much flimsier than other units in the wider UltralightX family we've tested to date.

9.8
Design
Weight
Lowest Weight
37.9 g
Default Weight
37.9 g
Weight Distribution
Centered
Extra Weights
No

We bought the medium-size variant of this mouse. For details on other sizes, see the Differences Between Variants section.

Finalmouse states that approximate weights are measured without skates and may have a variance of +/-2g from unit to unit.

Design
Hand Size Recommendation
Palm Grip Hand Recommendation
Claw Grip Hand Recommendation
Fingertip Grip Hand Recommendation

The Finalmouse UltralightX Competition has a fairly low-profile, symmetrical shape with a small, centered hump and gently sloping sides. Its shape is best suited for claw and fingertip grip types.

We tested the medium-size variant, which shares the same dimensions as all medium-size variants in the UltralightX family. For more details about these size variants, see the Differences Between Variants section.

If you'd like to see a comparison for the small size, see our review for the Finalmouse ULX Pro Series.

7.2
Design
Wireless Versatility
Maximum Of Paired Devices
1
Bluetooth
No
Receiver
Yes
Battery Type
Rechargeable
Use When Charging
Yes
On/Off Activation
Auto Off And On/Off Switch
Receiver Extender
Yes
Battery Indicator Yes

Finalmouse doesn't provide any battery life estimates for the Finalmouse UltralightX Competition, but we expect the battery to be the same 250 mAh size found on other models in the UltralightX family. On earlier models in the lineup, Finalmouse optimistically advertises a battery life of "up to two months," which is very unlikely unless you're using your mouse very occasionally and at the lowest polling rate settings.

The battery life you can expect will depend highly on average daily usage and the polling rate you choose, as higher polling rate settings consume significantly more battery life.

From a range of reports within the community, we expect a battery life in the neighbourhood of 15 to 20 hours of continuous use with 8000Hz polling. For most people using higher polling rates, you may need to recharge your mouse as often as every few days. 

7.5
Design
Cable
Connectivity Wireless
Cable Length
5.6 ft (1.7 m)
Cable Type
Braided
Permanent Kink
Yes
Port Type: Mouse End
USB-C
Port Type: PC End
USB

The braided USB-A to USB-C cable is fairly stiff and heavy, but it doesn't have any major kinks from its packaging and glides smoothly on desks and mousepads.

9.0
Design
Mouse Feet
Gliding Experience
Very Good
Material
Virgin Grade PTFE
Extra Included
No

This mouse's feet glide very easily on mousepads with only marginal felt friction when used directly on desks or harder mousepads. The feet have some sharp edges, but this doesn't add to drag due to how light the mouse is.

Design
In The Box

  • Wireless receiver dongle (USB-C)
  • Braided cable (USB-C to USB-A)
  • User documentation

Control
Control
Main Button
Switch Type
Mechanical
Switch Model
Huano Blue Shell Pink Dot
4.1
Control
Additional Buttons
Total Number Of Buttons
5
Number Of Side Buttons
2
Number Of Programmable Inputs
0
Profile Switching Button
No
Gesture Support
No

If you want to reprogram any of this mouse's buttons, you'll need to use third-party software, as the XPANEL web-based configuration client doesn't support button mapping.

9.9
Control
Click Latency
Expected Connection
0.9 ms
Wired
1.1 ms
Receiver
0.9 ms
Bluetooth
N/A

The Finalmouse UltralightX Competition has exceptionally low and consistent click latency performance. It delivers an exceptionally responsive-feeling experience for playing games in any genre and at any competitive level.

We performed this test at the maximum wireless polling rate of 8000Hz and the maximum wired polling rate of 1000Hz.

9.2
Control
CPI
SRAV @ 1600 CPI
0.23%
SRAV @ 800 CPI
-0.54%
SRAV @ 400 CPI
-0.25%
SRAV @ Fixed CPI
N/A
Precision Error Between Speeds
0.51%
Precision Error Between CPI
0.56%
Worst Tracking Error
-3.13%
Minimum CPI
100 CPI
Maximum CPI
12,800 CPI
CPI Adjustment Steps
100 CPI

The Finalmouse UltralightX Competition offers highly consistent CPI tracking without any significant errors or variation.

9.2
Control
Sensor Latency
Delay To Start Of Movement
12.6 ms
Delay At Half Movement
2.0 ms
Delay To End Of Movement
3.6 ms

The Finalmouse UltralightX Competition has outstanding sensor latency performance. The sensor quickly reacts when you move your mouse, and these movements very closely match the timing of the cursor movements you see on the screen.

We performed all tests with the polling rate set to 8000Hz. For comparison, we performed additional testing at 4000Hz and 1000Hz polling rates.

Our results demonstrate fairly similar performance between 4000Hz and 8000Hz settings, which is behavior we've also confirmed with the Finalmouse ULX Pro Series and base model Finalmouse UltralightX.

Control
Sensor Specifications
Sensor Technology
Optical (LED)
Sensor Model
PixArt PAW3395
Works On Glass
No
Minimum Lift Off Distance
1.2 mm
Maximum Polling Rate
8000 Hz

The available polling rate options are 500Hz, 1000Hz, 2000Hz, 4000Hz, and 8000Hz.

Using the software, you can also toggle Motion Sync, a setting that attempts to synchronize sensor data with USB polling events. Just note that this setting typically adds a very small amount (typically around 1ms) of motion latency. The software also notes that Motion Sync is automatically disabled at 8000Hz polling.

Control
Mouse Wheel
Scroll Wheel Type
Notched Wheel
Scroll Wheel Steps
24 Steps
Scroll Wheel Tilt
No
Thumb Wheel Type
No
Thumb Wheel Steps
No Thumb Wheel

The scroll wheel feels reasonably precise with well-defined steps. The mouse click is crisp and tactile, requiring a medium amount of force to actuate. Unfortunately, while the surface of the wheel is textured, it's fairly slippery especially if you tend to sweat more.

You can actuate the side button by pushing sideways into the wheel from the left, a feature some people appreciate as it can make actuating the scroll button easier without impacting preferred finger placement.

Control
Noise
Click Noise
Quiet

The left- and right-click buttons, side buttons, and scroll wheel operate quietly and are unlikely to bother anyone around you.

Operating System And Software
Operating System And Software
Configuration Software
Software Name XPANEL
Software Windows Compatibility
Yes
Software macOS Compatibility
Yes
On-Board Memory
Yes
CPI (DPI) Adjustment
Yes
Polling Rate Adjustment
Yes
Profile Configuration
No
Profile Auto-Switching
No
RGB On/Off
No RGB

The Finalmouse UltralightX Competition uses XPANEL, a web-based configuration client you can access from Finalmouse's website. This utility allows you to select polling rates, lift-off distance options, and preset or customize CPI settings. A desktop version is also available for Windows and Linux, but as of now, it doesn't support custom CPI adjustments. Additional software features include toggling Motion Sync and configuring LED behavior on the wireless receiver dongle. However, the software lacks button mapping functionality.

The mouse also supports 'Tournament Scroll' settings, which filter out your first scroll Up/Down (or both) inputs. You can adjust the length of the pass-through window—during which subsequent scroll wheel inputs activate normally—between 100 ms and 1500 ms. If no inputs are detected during this window, the filter reactivates.

In practice, this feature helps prevent accidental inputs, such as when the scroll wheel is lightly grazed or stops between steps and ticks unexpectedly. It's especially useful for players who bind scroll to critical actions like jumping in FPS games and often experience accidental scrolling issues with other mice.

10
Operating System And Software
Mouse Compatibility
Windows Compatibility Fully
macOS Compatibility Fully