The Endgame Gear XM2w 4k is a wireless gaming mouse with a medium-sized symmetrical shape characterized by a wide supportive rearward hump. It belongs to a wider family of Endgame Gear XM2 mice which all share the same shape. This mouse uses a PixArt PAW3395 sensor with a Nordic nRF52840 MCU, and it supports a maximum wireless polling rate of 4000Hz. It's also noteworthy for using uses Kailh GX single-pole double-throw (SPDT) switches, which offer unique performance settings and latency benefits compared to conventional mechanical switches. For more details, see the Main Button section.
Our Verdict
The Endgame Gear XM2w 4k is satisfactory for work, though it isn't designed specifically with this use in mind. That said, it has excellent all-around build quality and a comfortable, symmetrical shape with a supportive rearward hump. You can reprogram buttons using the lightweight configuration software, and it connects wirelessly with its included USB receiver. Unfortunately, its scroll wheel lacks helpful productivity features like L/R inputs and free scrolling.
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Excellent build quality.
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Connects wirelessly with its 2.4GHz receiver.
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Software is a lightweight executable file.
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Lacks productivity features such as L/R scroll will tilt inputs or free scrolling.
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No Bluetooth support for multi-device pairing.
The Endgame Gear XM2w 4k is a fantastic FPS gaming mouse. It has a comfortable symmetrical shape with a supportive rearward hump, which is ideal for a claw or fingertip grip for most hand sizes. It delivers outstanding all-around sensor performance and remarkably low click latency. It's also fairly lightweight, but this depends on your frame of reference. While it's easy to move quickly and accurately, it's somewhat heavier than many recent competing models.
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Excellent build quality.
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Outstanding click latency.
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Exceptionally low sensor latency.
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SPDT switches provide extraordinarily low click latency.
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Software is a lightweight executable file.
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Not as lightweight as competing FPS models.
The Endgame Gear XM2w 4k is very good for MMO gaming but doesn't have nearly as many side buttons as a dedicated MMO model. That said, you can program the buttons it does have using its lightweight configuration software. It also has superb raw performance, excellent build quality, and a comfortable symmetrical shape suitable for most hand sizes.
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Excellent build quality.
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Outstanding click latency.
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Exceptionally low sensor latency.
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Software is a lightweight executable file.
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Fewer side buttons than dedicated MMO gaming mice.
The Endgame Gear XM2w 4k delivers incredible raw performance, making it ideal for both competitive and casual play. It boasts outstanding sensor accuracy, a 4000Hz maximum polling rate, and SPDT switches with unique hardware debounce settings that ensure exceptionally low click latency.
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Exceptionally low sensor latency.
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SPDT switches provide extraordinarily low click latency.
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Lacks 8000Hz polling support.
- 7.1 Work
- 9.3 Video Games (FPS)
- 7.9 Video Games (MMO)
- 9.7 Raw Performance
- Updated Feb 05, 2025: Review published.
- Updated Jan 28, 2025: Early access published.
- Updated Jan 16, 2025: Our testers have started testing this product.
- Updated Jan 07, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.
- Updated Nov 15, 2024: We've purchased the product and are waiting for it to arrive in our lab.
Differences Between Sizes And Variants
The Endgame Gear XM2w 4k is available in four different colorways, Black, White, Black Frost, and White Frost. For more details on how the surface coatings differ for these colorways, see the Build Quality section. We bought and tested the Black Frost color. See an image of our unit's label.
Compared To Other Mice
The Endgame Gear XM2w 4k is a wireless gaming mouse. It's part of Endgame Gear's wider XM2 line-up of mice which all share the same medium-size symmetrical shape with a fairly wide and supportive rearward hump. This mouse is positioned as a wireless alternative to the wired Endgame Gear XM2 8k and a higher-performance alternative to the more budget-oriented Endgame Gear XM2we. Compared directly to the XM2we, it has a newer sensor, support for higher polling rates, and unique SDPT switches.
Competing in a crowded price segment, the XM2w 4k goes up against similarly shaped and slightly less expensive mice like the Scyrox V8, the Ninjutso Sora V2, or slightly smaller alternatives like the LAMZU Atlantis Mini 4K. While its relatively heavier weight and lower 4k polling rate may seem less compelling than some of its lighter 8k-capable rivals, its standout feature is its SDPT switches. These switches provide significant latency advantages over conventional mechanical or optical switches found on other gaming mice. Combined with excellent build quality and lightweight executable software, the XM2w 4k offers a unique high-performance competitive option worth considering, especially if you favor a claw grip.
For more recommendations, see our picks for the best gaming mice, the best wireless gaming mice, and the best claw grip mouse.
The Endgame Gear XM2we is a more budget-friendly model in the same lineup as the Endgame Gear XM2w 4k. Altogether, the Endgame Gear XM2w 4k is better suited for more competitive gamers. Both are wireless mice that share the same shape, but the XM2we doesn't quite match the raw gaming performance of the XM2w 4k. The XM2w 4k has a newer sensor, supports a higher polling rate, and uses unique SPDT switches which provide exceptionally low click latency.
The Endgame Gear XM2w 4k and the Endgame Gear XM2 8k are models in the same lineup that share the same shape. Both mice are exceptionally good competitive gaming picks so choosing between them largely comes down to your preference for wireless versatility. The XM2w 4k has wireless connectivity while the XM2 8k is a wired-only model. That said, the XM2 8k also supports a higher polling rate of 8000Hz, providing slightly better and more consistent raw gaming performance.
The Endgame Gear XM2w 4k and the Scyrox V8 are wireless gaming mice with similar symmetrical shapes that have a wide rearward hump. Both provide remarkably good raw performance for competitive gaming, but the Scyrox is a better choice if you have a strong preference for lightweight mice. Comparatively, the Endgame Gear has unique SPDT switches that can achieve slightly lower and more consistent click latency. While the margin is very slight and never something you'll notice in-game, the Endgame Gear may be the better choice if you value getting the lowest possible click latency performance possible.
The Ninjutso Sora V2 and the Endgame Gear XM2w 4K are wireless gaming mice with similar symmetrical shapes and wide, supportive rearward humps. The Ninjutso is noticeably lighter and offers slightly better sensor performance, supporting a higher polling rate—though only with a separate dongle. In contrast, the XM2w 4K features unique SPDT switches with hardware debounce, delivering lower and more consistent click latency. Both mice provide top-tier raw performance for competitive gaming. While the Ninjutso has measurably better sensor latency and the XM2w 4K better click latency, the differences are imperceptible in-game. If you prefer a lighter mouse, the Ninjutso may be the better choice.
Test Results
This mouse has a subdued, straightforward look. It has a faint Endgame Gear logo on the front left side. There's no RGB lighting, but a small LED on the bottom left side changes color to indicate your chosen CPI setting.
We bought the Black Frost model, which has a dark gray translucent body. There's also a White Frost model available as well as matte Black and White versions.
Its solid plastic body feels very sturdy, with no loose or wobbling parts. There are no rattling sounds when you shake the mouse, and all segments have tight seams without any gaps. The main clicks, side buttons, and middle clicks are well-tensioned and have satisfying tactility. That said, the body exhibits minor flexing and emits some creaking noise if you apply considerable pressure.
This mouse has several different colorways available with differing coatings depending on the version you buy. We bought and tested the Black Frost color variant. The Black Frost and White Frost variants have translucent bodies, and the coating has a slightly rubbery soft-touch feel.
The Black and White colorways have a matte opaque body, and the finish is slightly chalky. Endgame Gear describes this coating as similar to a smooth, dry stone.
Endgame Gear also notes that both the White and White Frost colorway versions have an additional UV coating designed to keep the mouse from yellowing over time.
The Endgame Gear XM2w 4k shares the same shape as other models in the XM2 and XM1 series, including the Endgame Gear XM2we and the previous generation Endgame Gear XM1r. It's medium-sized and symmetrical, with a centered hump that's closer to the rear of the mouse. The shape narrows slightly in the middle and has a fairly wide back end designed to fill out your palm. This shape is especially well-suited to support a claw grip for most hand sizes. That said, the overall size of the mouse and its width towards the back can make it unwieldy to hold if you have very small hands.
The Endgame Gear XM2w 4k has a battery capacity of 335 mAh. This is slightly less than the 410 mAh battery in the Endgame Gear XM2we, advertised to provide up to a week of usage between recharges.
Endgame Gear provides a maximum battery estimate of seven days with this mouse as well, but we expect this estimate is only achievable if you're using a 1000Hz polling rate.
Given its battery capacity and reports from the community, we expect you may need to recharge this mouse as often as every few days when using the 4000Hz setting, though it depends on your usage.
The Endgame Gear XM2w 4k comes with a paracord-like cable. It's lightweight and feels fairly flexible, but it retains some kinks from its packaging. This cable feels just like the cable included with the Endgame Gear XM2we, but it's a bit heavier and less flexible than the attached cable of the previous generation Endgame Gear XM1r.
The feet have rounded edges and glide very smoothly across mousepads or desks with minimal drag. Note that this mouse comes with a smaller set of feet installed.
An alternate set of larger mouse feet comes included in the box. There's also a sensor ring foot included, which Endgame Gear recommends if you have a softer mousepad.
- USB-A wireless receiver
- USB-A to USB-C charging cable
- Alternate mouse feet (large)
- User documentation
- Carrying case
The Endgame Gear XM2w 4k uses Kailh GX SPDT (single-pole double-throw) switches with top and bottom contacts. These switches are designed to provide exceptionally low latency while limiting potential double-clicking.
Using the configuration software, you can toggle SPDT switch modes between GX Speed, GX Safe, and OFF.
GX Speed: This mode provides the lowest possible click latency performance. Its click detection starts when the contact plate separates away from the top contact, whereas with the SPDT setting OFF (and with most other mechanical switches), the click detection starts when the contact plate hits the bottom contact.
GX Safe: This mode is just as fast as the OFF setting but adds extra hardware debounce to guard against potential double-clicking events. For reference, you can read a description and see a visual illustration from Endgame Gear's public Discord channel.
You can reprogram all the buttons on the top of the mouse using the configuration software except for the left-click button, which can only be swapped with the right-click button by toggling the left-handed mode option in the software.
On the underside, there's a non-programmable mode switch button that cycles between CPI settings alongside a power switch.
The side buttons and the middle (mouse wheel) button use Kailh GM 2.0 switches, which Endgame Gear advertises to provide a crisper click feeling and improved durability over the side buttons used on the previous generation Endgame Gear XM1r.
The Endgame Gear XM2w 4k has exceptionally low and consistent click latency, providing an extremely responsive in-game experience for gaming in any genre.
We tested this mouse at its maximum polling rate of 4000Hz, with SPDT settings for the left-click button set to GX Speed Mode and the Slamclick Filter off.
The Endgame Gear XM2w 4k has superb CPI performance. It delivers extremely consistent tracking accuracy at all CPI settings without any significant variation.
The Endgame Gear XM2w 4k delivers remarkably low sensor latency. The sensor reacts extremely quickly when you move your mouse, and these movements closely match the timing of the cursor movements you see on-screen.
We conducted this test at its maximum out-of-the-box polling rate of 4000Hz with Motion Sync off.
For comparison, we performed supplementary testing:
1000Hz, Motion Sync off:
- Delay to start of movement: 14.5 ms
- Delay to half of movement: 4.1 ms
- Delay to end of movement: 2.3 ms
2000Hz, Motion Sync off
- Delay to start of movement: 13.2 ms
- Delay to half of movement: 3.3 ms
- Delay to end of movement: 3 ms
4000Hz, Motion Sync on
- Delay to start of movement: 13.1ms
- Delay to half of movement: 2.8 ms
- Delay to end of movement: 5.2 ms
See comparison graphs for our supplementary testing.
The Endgame Gear XM2w 4k supports 1000Hz, 2000Hz, and 4000Hz polling rate settings.
Using the software, you can toggle additional sensor settings, including Motion Sync and Motion Jitter Filter. For more details, see the Configuration Software section.
The Endgame Gear XM2w 4k has a grooved rubber scroll wheel. It operates fairly quietly and has smooth but well-defined steps. The scroll click has a satisfying tactility that doesn't require too much force to actuate but feels marginally heavier than the scroll click on the previous generation Endgame Gear XM1r.
This mouse uses a TTC silver encoder, the same encoder model used for the Endgame Gear XM2we and the Endgame Gear XM2 8k.
The left- and right-click buttons, scroll wheel, scroll click, and side buttons on this mouse are fairly quiet and unlikely to bother those around you.
The software is lightweight and easy to use. It's a simple executable file available on Endgame Gear's website. It doesn't require installation, and you can save all settings to the onboard memory, so you don't need to keep it running in the background. It allows you to adjust a range of expected settings, including polling rate, sleep settings, lift-off distance, ripple control, and angle snapping.
You can also change the SPDT settings related to the behavior of the main buttons. For more details about these settings, see the Main Button section.
Additional software options include:
Motion Sync: This setting attempts to synchronize sensor data with USB polling events. It can make on-screen motion feel more consistent, though it typically adds a small amount of latency (up to around 1 ms).
Motion Jitter Filter: This setting can help smooth out cursor movements if you use very high CPI settings (above 6000 CPI).
Slamclick Filter: This setting adds a slight debounce delay when you lift your mouse, helping to prevent slamclicks. (Slamclicks are unintended clicks that can occur when placing the mouse back on the pad with too much force.) It's especially useful if you frequently lift and reposition your mouse during gameplay.